Problem to open the termbase

Hello, I have problem with my term base. When I open a project a message appears that say: Cannot open the termbase. I do not know how to proceed because I cannot activate it. 
The termbase we use since years ago is a plugin: ML.TB.2021_NoLogin.sdlplugin

I did not have any problem before with it. I need help with this. We do not use multiterm

Thanks

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