Need Help with Walther LP300XT

[pardoctor]

While at the 10m range last Friday I noticed that the trigger blade on the pistol was very loose and off center. I proceeded to reposition the trigger and use the correct allen wrench to tighten the screw (identified in the manual as screw "a"). I made no other adjustments and touched no other screws. And, much to my surprise the pistol would no longer fire. It will cock, but the trigger will not release. It appears to be frozen with no play front to back. Any help would be greatly appreciated!

Thanks,

Vince

[David M]

Have a good look at the trigger shoe and make sure it is not touching either
the frame or grip somewhere stopping the travel.
All else fails reset the trigger over travel screw "e" anti clockwise 1/4 turn
at a time.