In ezurlwildcard.php, "wildcard-cache-index" is spelled twice with an extra "r", as argument to eZPHPCreator constructor.
This in turn means that the string tries to be stored in the "scope" column of ezdbfile, which is declared as varchar(20). Since the string is now 21 chars long, an error occurs.

Fix: remove the extra r.

Please not that thare is also a "wildcard-cache-" .$filecount naming that will choke the same way when $filecount reaches 100.000, or total url aliases reach 10.000.000 - a high number but not that high...

NB: same bug applies to 4.1alpha1