There was a hardware failure on the server. The website is restored now.
The database backup is from the 29th of January. Unfortunately, there's no newer backup.

I might consider it for one of the future versions. Please create a new post about it.

That's expected, as v4.5.5 did have a bug. But v4.5.6 should have fixed this. If you still have the issue with v4.5.6, and are willing to help, I will make an additional debug build to try and find out what causes the issue.

Please contact UserEcho support: http://feedback.userecho.com/

Yep, 32 GB sounds like enough.
In v4.5.5 of the tweaker, I've updated the MinHook library to a newer version.
Could you try an older version (e.g. v4.5.4) and see whether the issue still occurs?
You can get it here:
https://www.dropbox.com/sh/mcbychsh0xc1dvu/8-Lj2sg3NP

The error happens in the MinHook hooking library which the tweaker uses, and error code 9 is MH_ERROR_MEMORY_ALLOC, which means that the library could not allocate the required amount of memory. Could a limited amount of system memory be the issue here? Also, are you using a 32 or a 64-bit system?

You're right. Seems like it's not new. I'll look at it.

No problem, it's not something a screenshot cannot fix :)

OK, I believe that I could reproduce it, and probably fixed it.
Please try the following version:
https://www.dropbox.com/s/64c32kbcw75hzvw/7tt_setup_beta_v4.5.6.4.exe?dl=1