The current code for $DBversion = '3.01.00.107' includes calling another script (patroncards_upgrade.pl) outside updatedatabase. It died with me on "Table creator_batches already exists in script patroncards_upgrade.pl". This die only ends that script but the 500 error comes between the upgrade lines in web installer (catched by IPC call to updatedatabase in install.pl). # Status: 500 # Content-type: text/html # # <h1>Software error:</h1> # <pre>DB ERROR: Table 'creator_batches' already exists # </pre> # <p> # For help, please send mail to the webmaster (<a href="mailto:bibliotheek@rijksmuseum.nl">bibliotheek@rijksmuseum.nl</a>), giving this error message # and the time and date of the error. # # </p>