Trying to uninstall the module :

Recoverable fatal error : Argument 1 passed to serial_field_delete_instance() must be of the type array, null given dans serial_field_delete_instance() (ligne 75 dans /var/www/html/sites/all/modules/serial/serial.module).

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weeger created an issue. See original summary.

SpartyDan’s picture

SpartyDan CreditAttribution: SpartyDan commented
Status: Active » Postponed (maintainer needs more info)

Please download the most recent -dev release and run update DB.

If you are still encountering this issue please give us more information including a stack trace, distribution, and Drupal version.