TotalFinder 1.10.5 and 1.10.7 Crashing

I have been using TotalFinder 1.10.7 for a while under High Sierra and have had problems with it repeatedly crashing. It works fine for a while and then I get the following notice:

When I try to report the problem by clicking “Send Email” I get the following notice:

Since 1.10.7 is a Beta, I thought I’d uninstall it and re-install using 1.10.5. Sadly, I’m having the same issue with it. Any help would be appreciated. Thanks!

This will be likely caused by something else. Could you please send me a diagnostics file by following this gist?