The hosted version at https://netsim.erinn.io/ cannot create new users

[mryantho]

Attempting to create a new user at: https://netsim.erinn.io/register.php

results in the following message:
Warning: SQLite3Stmt::execute(): Unable to execute statement: database is locked in /var/www/html/netsim.erinn.io/register.php on line 13