When you say 'this' please be clear. The RBZ for the SketchUcation toolset which also control the licensing and ExtensionStore dialog etc is easily installed using the native Extension Manager > Install... button. Restart SketchUp afterwards to sync everything. It appears in its own submenu under Extensions and there is also a Toolbar.
LibFredo6 is not needed for the toolset, but it is vital to all of Fredo's extensions.
If you have not installed SketchUp itself 'properly' then you do not need to Uninstall and Reinstall it, instead close SketchUp, then find the SketchUp Installer's exe file in your Downloads folder [or download a fresh copy]. Select the exe file's icon, right-click > context-menu > Run as administrator - a dialog should open, accept the 'Repair' option, this will reset all of the permissions properly so extensions can install and save preferences etc. In a few rare case with some of Fredo's stuff a further manual deletion of a badly permission-ed subfolder etc is occasionally necessary, but let's cross that bridge as we come to it !

@Tpdart

Explaining how you fixed things helps others reading this, and gives useful feedback to moderators and experienced users who might be 'advising'...

Did you try doing the Signature file deletion that the dialog suggested and try again ? Also check that the following extensions are up to date and installed and SketchUp restarted - SketchUcation toolset [for the licensing], the actual Extension[s] in question and if appropriate LibFredo6.

If you have renamed your computer or copied files over from elsewhere, then this error can occur. If you Computer's name [and indeed your User-name] go against the recommended format of just ASCII letters + numbers and some limited punctuation - e.g. you've used accented letters or special-characters etc - then this can also cause errors like this - so try to rename your computer sensibly...

@LayaCZ

I have tested the RBZ and it is definitely installing SubD in error, although the RBZ is properly named ?? Perhaps @thomthom or @rich-o-brien or @Gábor can shed some light on this weirdness

Have you installed and restarted the following latest versions from or PluginStore / ExtensionStore -
SketchUcation tools
LibFredo6
Each of the Fredo's extensions raising the issue

Also issues can arise in reading the license file if your Computer or user-account has a name that doesn't follow the Microsoft naming requirements.
That is just ASCII characters alphanumeric and some limited punctuation - so for example - users with accented or foreign characters sometimes get this kind of issue as the paths etc are sometimes confusing to Ruby interpretation...

Here's v1.4
https://sketchucation.com/pluginstore?pln=TIG_ShowTime

The Export PNGs coding has been streamlined and the time taken per image & total is now reported in the RC.

@hshieds1

Have you tried the simple edit for the delauney3.rb script [which it needs] to make it suitable for the newer versions of SketchUp's Ruby ?
It is explained a few posts above this - https://community.sketchucation.com/topic/136273/plugin-voronoi-conic-curve/131

See my reply in your duplicate post.

Ensure that you have the newest versions of the extension installed, and LibFredo6 and the SketchUcation toolset [which manages licenses].
Restart SketchUp to sync everything.
If you can't manage the licenses in the Tools submenu entry for the extension, then use the SketchUcation PluginStore page [logged in] item in its drop-down 'My Licenses', which should let you manage your licenses. If all of this fails text back and someone in support will try to help...

Here's v1.3
https://sketchucation.com/pluginstore?pln=TIG_ShowTime

The Export PNGs code has been adjusted to export only those Scene-tabs with 'include in animation' ticked in their Scene details.

The Help file has been adjusted accordingly...

The link in the very first thread in this topic contains the working url to download the zip file containing the txt font's ttf file.
https://community.sketchucation.com/uploads/imported_attachments/pdqA_txt_____.zip
I just used it.
I can't see what your issue might be...

Following my post about setting up your model's shadows for date/time-stamping and export, I had assumed the first steps to be self-evident - but for the avoidance of doubt...
Your model needs to be Geo-located to show correct shadows - because the UTC Time-Zone and its actual location are both important.
Use the Model Info section for this.
For example, the shadows at 08.00 in Southern England and in Northern Scotland are quite different despite them sharing a Time-Zone.
Also the model's default 'North' is the Y Green axis, but there might be an offset shown orange in the results. Make sure the Z Blue axis is 'up'.
If you have modeled the building 'on axis' but have a building that is in reality 'off axis', you can resolve this by making a group of everything, and then rotating that group to suit the actual North, when you edit that group its axes with it will still align as before; any further modeling within that group will also remain 'on axis' for your building, whilst it is actually placed in the world correctly.
The model's Shadow settings should now reflect its Geo-location.
Alternatively of older versions, if you want to adjust the 'north solar axis' manually, then there's a su_ tool available in the EWH - https://extensions.sketchup.com/extension/393f5153-ba5f-4f5f-849f-46b32cf64bd4/solar-north
I have Geo-location set up on my usual Template for my regional location, set manually using the Model Info dialog's section.
You can set up templates for various locations if you work in several different areas.

@omni
What software do you mean ?

Have you got the latest versions of the extensions and SketchUcation toolset ? This is needed to manage the licenses effectively.
Have you tried the forums 'My Licenses' page in the PluginStore, or perhaps easier to use, the page accessed from the ExtensionStore dialog's 'Quick Menu' called 'Licenses' both of which let you manage your licenses Release/Activate etc...

Following on from the previous 'usage' post, I've been asked about how you can export a Scene-tab containing the actual shadow reported with its area and %.
My other tool TIG_ShadowProjector will do this.
https://sketchucation.com/pluginstore?pln=TIG_shadowProjector
Read its thread for usage notes and guidance.
You need to set up a Plan [or Plan-like] view and model any building volumes simply to avoid excessive checking of objects that are ultimately found not to project meaningful shadows - e.g. internal floors, partitions and fittings, then faces for the neighboring land.
Select the face[s] to receive the shadows... Run the tool and choose the options.
The projected shadow can be represented in various ways -
probably the best for your purposes is the 'Faces[Edged]%-sq' - it draws each shadow as a 'gray' face, with edges visible, and with a text-label at its center of the 'Shadow' group showing the % and area [uses the current model's area units - sq' or sqm] of that face that's shaded at that date/time.

Some of you have asked how best to use TIG_ShowTime.

Here's some outline guidance based on the UK Planning Authorities' Rules - but other countries should have similar requirements.

If your proposed building overshadows its neighbors [particularly public amenity space] then no more than 50% of its surface area can be in shadow at any time, between 08.00 and 18.00 hours on 21st March. Some authorities also ask for studies for 21st June [summer] and occasionally 21st December [winter].

Adjust your model's Tags to show only your relevant building's massing and any adjacent structures' volumes and of course relevant ground plane faces etc.
Select a camera view that best shows your building any adjacent properties that might be affected.
Switch on Shadows so you can see the affects.
Add this tool's Screen-Text time-stamp using 'On' - e.g.' 21 March 08.00' at the bottom-left corner of the screen, with a 0 second delay.
Now set up Scene tabs for the 11 times [8.00..18.00], with each tab probably using the same view, although you could change the view in some Scene tabs to show relevant shadows better at critical times.
Rename each Scene tab to represent the time-stamp, e.g. 08.00, 09.00.. 18.00.
For each Scene tab in turn set its Shadow properties to the desired date [e.g. 21st March] and the relevant time [e.g 08.00], then Update that Scene tab to fix those values to it.
Open the View > Animation > Settings dialog - typically set Enabled scene transitions, at 3 second, with 0 second delay.
Choose View > Animation > Play > to see the effect.
When you are satisfied with the results you'll want to save the model and then export some data.
Open the first Scene tab in the set.
For an animated movie use use File > Export > Animation
MP4, select the Options you want - typically 30 fps, 720p HD, etc.
By default the output is saved into your model's folder, using the model's name.

You can also use the File > Export > 2d Graphic, and choose PNG etc if desired, as appropriate adjust its Options in the dialog.
Manually choose a file-name to reflect the Scene tab's name e.g. 08.00.png - otherwise it defaults to use the model-name.png.
It is recommended that you use a separate subfolder for these PNG files to avoid cluttering the model's folder.
However, Version 1.2 of the TIG_ShowTime tool has a new 'Export PNGs' option in its submenu to save each Scene tab to a PNG file, into a chosen folder.
The PNGs are named after the Scene-tab name etc, see the Help section for full details.

v1.2 is now released.
https://sketchucation.com/pluginstore?pln=TIG_ShowTime
It includes a new tool on the submenu > Export PNGs to save images of each Scene-tab named after the tab.
Full details are covered in the Help dialog.

v1.1 is now released.
https://sketchucation.com/pluginstore?pln=TIG_ShowTime
It's recoded to sidestep unpredictable bugsplats from undo-stack errors during animation exports. Improved Help content etc...

The B errors relate to license file issues.
Rich will comment in detail.
Have you copied the .license files over to your new PC ?
Have you tried activating the license [green button] ?
Have you logged in and checked your used licenses under the SketchUcation.. PluginStore > My Licenses page ?

@Rich-O-Brien
Not without a complicated HTMLdialog.
But I think the Help is only necessary when you first set it up
Thereafter you'll use the same settings, most of the time.
It's no hardship to note down the format and screen X & Y if you vary from the built-in default.
You can even edit the defaults in the RB file if you want to start off differently - but this will break the signing.
The On defaults are what you'll typically want anyway.
You only need to add a piece of screen-text once as it updates as you change to another scene-tab with a different date/time.
Used in animations etc...