*Wordpress* Error on the website after creating the room. Please help me solve this

[Rik04111994]

Hi, everybody

Please help me solve this problem, maybe someone has encountered it.
The thing is, when activating the plugin and creating a room at the top of the site, this error appears on all pages. Also, a rest api error appears in the diagnostics of the site's health plugin. We managed to remove the error in the health of the site as follows by replacing the code instead of

"session_start();"
to
"session_start(['read_and_close' => true]);".

The error went away in the diagnosis, but it is still displayed at the top of the site itself. Please help me solve this problem. Thanks