I figured it out. What happened is when I added Data Bridge v2, Design Extender V1, MwSQLi Server Behaviors and eCart v6 all at the same time it causes a conflict. Im not sure if it a Dreamweaver 21.2 thing or what. But the conflict causes dreamweaver to basically lock up and makes all webassist plugins unusable. So for now Im running with just the MySQLi Server Behaviors one because its the most stable one and allows me to actually open up your dialog boxes.