The problem is Clean My Mac.
We have found that people using this program commonly find that it erases a core Jaksta file (sometimes even when it is whitelisted to be excluded) which will result in a crash on startup.
Reinstalling Jaksta puts the file back in place, but then it is eventually deleted again by CMM. The issue is caused by Clean My Mac and is not a fault with Jaksta.
Our general recommendation is to stop using any auto-delete or 'cleaning' software, as it could similarly be affecting other programs and generally they are more trouble than they are worth.
From Liam @ 23 Apr 2018 10:04