Help for dummie laser jittery jumping and locking out

Ive been problem free until all of a sudden im getting my laser jumping nd jittering. this code message comes up after it makes a mess of my project in the middle of it.

Ortur Laser Master 2 Ready!

OLF 140.

Grbl 1.1h [’$’ for help]

[MSG:’$H’|’$X’ to unlock]

error:9

G-code locked out during alarm or jog state.

On or near line 1538:

Job halted

Stream completed in 0:57

Yes, that is what that error is about. Have a review of this: