ALARM 1:Hard limit triggered

Hello

When laser is going to home position again I got a error beep and this is showing up in console:

ALARM:1

Hard limit triggered. Machine position is likely lost due to sudden and immediate halt. Re-homing is highly recommended.

On or near line 4:

Stream completed in 0:00

[MSG:alarmCodeCodeIntHandle:1

]

[MSG:Program End]

ok

Grbl C10-0132-V1002 [‘$’ for help]

[MSG:Check limits]

[MSG:‘$H’|‘$X’ to unlock]

[MSG:Caution: Unlocked]

ok

Grbl C10-0132-V1002 [‘$’ for help]

[MSG:Check limits]

[MSG:‘$H’|‘$X’ to unlock]

[MSG:Caution: Unlocked]

ok

Who can help me?

You have limit switches?
The laser is homing to the corner with the switches?
The switches are physically being triggered?