Westinghouse 3400 weak pressure after a clog nozzle

I have the westinghouse 3400psi model. On the second time using it, that nozzle that you can get that spins and shoots the swirly pattern (sorry forgot what it's called), clogged. At the time I didn't realize it was the nozzle. I used vice grips to remove the hose since the pressure was too great to remove any of the quick connects. I got everything disassembled and put away in garage a few weeks ago. I did not store it pressurized. Today I just got it out of the garage to wash my patio and I noticed the surface cleaner didn't have as much pressure.

I did try putting that ither nozzle back on today and as i thought, it was stopped up. Had to use vice grips again to remove hose.

Any ideas why I lost pressure? I tried with a different hose, so I know the pressure loss is at the machine and not any of the attachments.

Thanks in advance.