Just an update.

Cause of the error was found

The open limit (input) OPI magnetic contact was found to be out of range of the magnet which switches the state and close the switch. What was interesting though is that the lift worked perfectly for years without showing an error for this.

The door drive was tested and all wires was tested for continuity. The magnetic switches was tested and found to be responding as should but still I wasn't getting a 24VDC on OPI and in return and output signal wasn't sending to the controls which registered an error 55. The magnet switch was adjusted within range and the lift was place to run. The random car calls that the unit was experiencing ended immediately which is evident upon resolving the issue.