After enable error 500

[fototapeti@.....bg]

After installation and when I tried to enable OPC error 500 in admin side when I tried to access OPC
After disabling the plugin I can access OPC
Joomla - Last
VM - Last
Any suggestion?

PS. I bought extension yesterday and if support is in other section let me know

[admin]

Hello, pls try to find out the error via php error logs, but for J4 and now J5 we adjust OPC every other day - i can send you our latest installer for J5 if you'd like.

We did lot's of updates recently, if you are using Joomla 5 you might need to wait a little bit till we release the official installer. For Joomla 4 you might want to:
- disable "system - debug" plugin
- enable global "debug" config to see the full backtrace
- ifyou can reach opc exts you might want to install our fatal catcher plugin + enable it with default config (everything NO + your email optionally)
- in OPC backend you might want to enable "store checkout errors" (they will be stored in opc menu at BE as one of the last option)

best regards, stan