Fatal error due to unexpected syntax error

Hello

I have had to deactivate the plug LoginWP on account of a fatal error. The corresponding error message is as follows:

This plugin failed to load properly and is paused during recovery mode.
An error of type E_PARSE was caused in line 380 of the file /home/medstats/public_html/wp-content/plugins/peters-login-redirect/src/core/src/Admin/RedirectionsPage.php. Error message: syntax error, unexpected ‘?’

Could you please explain what has caused the error to occur and how best to address it?

Many thanks!