Catchable Fatal Error

Hi,

when going to the redirection page:
https://xxxx.xx/wp-admin/tools.php?page=redirection.php

I get this error:

Catchable fatal error: Argument 2 passed to
Redirection_Table::__construct() must be an instance of Red_Group,
boolean given, called in /home/xxxx/public_html/xxxx/wp-content/plugins/redirection/redirection-admin.php on line 329
 and defined in /home/xxxx/public_html/xxxx/wp-content/plugins/redirection/models/pager.php on line 11

what’s the problem? And how can I solve this?

https://www.ads-software.com/plugins/redirection/