Hi Benjamin,
I noticed on the VSL forum that they weren’t very helpful for you (and didn’t even understand the underlying issue, as it certainly isn’t exclusive to Catalina). Dave (dbudde) of this forum has kindly provided step-by-step instructions here:
His instructions are simple to understand, and quite detailed, so they will no doubt remove any lingering uncomfortable-ness you might feel trying out this fix. This way you can enjoy full use of the your trial period. (You can always make copies of the original folders Dave mentions and keep them somewhere safe to be able to restore them to their original state, if you anticipate you might need to do so at some point. Even if you don’t save backups, you can always re-install VEP to restore the original state of these folders.)
Hope this is helpful,
Sam