VST plugin scan crashes because of Halion6

I can’t use hallion 6 in Logic (mac). When I scan for plugins the scanner crashes because of Halion6.
I also can’t use it in Max MSP - there I get the message: The host application did not reload the plugin properly.
It all works fine with symphonic orchestra (also Steinberg VST3 plugin) but also NOT with Halion Sonic.

How do I solve this problem? Reinstall? Delete some preferences?