phpbb_recent_topics

I installed phpbb_recent_topics on our WordPress site https://www.stoomgroepholland.nl
Right out-of-the-box it worked fine, but…….
When I deactived and removed the plugin, it was no longer possible to get it working again without changes to the database.
The problem arises because the data in lnx_PRT_options is still present but pointing to wrong information. At least the paramter after
s:12:”prt_phpbb_db”;s:0:””; should be set to the name of your phpbb database. After removing the plugin is has been set to an empty field with length 0 (s=0). After changing this parameter into:
s:12:”prt_phpbb_db”;s:5:”forum”; it was possible make other important changes s website administrator. In our situation the table names were pointing to phpbb_ instead of phpbb3.
It is a pity that this nice and simple plugin is only half complete.