https://www.phpbb.com/support/docs/en/3 ... upgrade31/
and finally it worked and showed me the forum, the control panel and told me that the update is not complete, I clicked on update, I charge as 60% of the progress bar and it showed me an error
I hope you can help meThe installer detected a timeout
The installer has detected a timeout, you may try to refresh the page, which may lead to data corruption. We suggest that you either increase your timeout settings or try to use the CLI.