[Error Message] Error on registeration and and adding a forum

[Crazycat]

quick methode: execute the following query in your sql interface (phpmyadmin): ALTER TABLE venomusers ALTER COLUMN default_tab TEXT NULL
As this plugin uses a TEXT field, it's impossible to add a default value, so you have to allow null in it. Note that's a fix which can create bugs.

A better way should be to change the type of field: it contains an id, so modify the plugin:
the line 116 ($db->add_column('users', 'default_tab', 'TEXT NOT NULL');) must become:

$db->add_column('users', 'default_tab', "VARCHAR(255) NOT NULL DEFAULT ''");

And you can uninstall/reinstall the plugin, or directly alter the DB:
ALTER TABLE venomusers ALTER COLUMN default_tab VARCHAR(255) NOT NULL DEFAULT ''