Forms crashes the server

Hello, guys
It happens on joomla 5.0.2 and latest forms 2.2.1
1) open Forms
2) go to templates and click the templates button
3) Forms starts installing templates ( 58 )
4) once these templates are installed nothing happens
5) when you refres the page you can not access the site nor admin area
6) every domain we have hosted on the same server are not accesible with the same error screen.
7) after hours without access, all domains are recovered. If you repeat the process the Forms try to install these templates again and crash the server again.

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