php gnusocial_de/scripts/checkschema.php          Found old file table, upgrading it to contain 'urlhash' field...DONE.   Updating urlhash fields in file table...DONE.                           Resuming core schema upgrade...                                         Found old file_redirection table, upgrading it to contain 'urlhash' field...DONE.                                                               Updating urlhash fields in file_redirection table...DONE.               Resuming core schema upgrade...PHP Fatal error:  Uncaught exception 'Exception' with message 'DB Error: already exists' in /var/www/gnusocial_de/extlib/PEAR.php(895) : eval()'d code:1                                 Stack trace:                                                            #0 /var/www/gnusocial_de/extlib/PEAR.php(895): eval()                   #1 /var/www/gnusocial_de/extlib/DB.php(967): PEAR_Error->PEAR_Error('DB Error: alrea...', -5, 32, NULL, 'ALTER TABLE fil...')
#2 /var/www/gnusocial_de/extlib/PEAR.php(531): DB_Error->DB_Error(-5, 32, NULL, 'ALTER TABLE fil...')                                           #3 /var/www/gnusocial_de/extlib/DB/common.php(1907): PEAR->raiseError(NULL, -5, NULL, NULL, 'ALTER TABLE fil...', 'DB_Error', true)             #4 /var/www/gnusocial_de/extlib/DB/mysqli.php(928): DB_common->raiseError(-5, NULL, NULL, NULL, '1062 ** Duplica...')                           #5 /var/www/gnusocial_de/extlib/DB/mysqli.php(402): DB_mysqli->mysqliRaiseError()                                                               #6 /var/www/gnusocial_de/extlib/DB/common.php(1215): DB_mysqli->simpleQuery('ALTER TABLE fil...')                                               #7 /var/www/gnusocial_de/lib/schema.php(535): DB_common->query('ALTER TABLE fil...')                                                            #8 /var/www/gnusocial_de/lib/schema.php(515): Schema->runSqlSet(Array)  #9 /var/ in /var/www/gnusocial_de/extlib/PEAR.php(895) : eval()'d code on line 1