SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6.pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('a2064162a7d259fe4c7ec11d1b1aa98a','0','18.191.236.174','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714861269','thread.php?threadid=1859&threadview=1&hilight=&hilightuser=0&sid=0343e27f175a2d303acafa29edc82272','0','0','')
mysql error: Duplicate entry 'a2064162a7d259fe4c7ec11d1b1aa98a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.41
php version: 5.3.29
Date: 05.05.2024 @ 00:21
Script: /wbb2/thread.php?threadid=1859&threadview=1&hilight=&hilightuser=0&sid=0343e27f175a2d303acafa29edc82272
Referer: