Unfortunately this log is truncated. In steam, you can right-click TOXIKK, select "Properties" and under SET LAUNCH OPTIONS please enter "-forceLogFlush".
There's also lots of error messages in your log that I never saw on my installations. Did you try Steam's "verify integrity of game cache" under the "local files" properties? My best guess is that some of the files in your TOXIKK folder are corrupt.
Also, try to unsubscribe from all TOXIKK Workshop items. Maybe one of the items hasn't been updated to work properly with TOXIKK 1.0.5 and causes problems now.