Here is a possible question related to this error:

What could be the reasons behind Nozzle 2 consistently failing to pick up materials in KM-ASSYM2-02 and what can be done to resolve the issue?
The solution to the error M123-Nozzle 2 failed to pick up materials several times in a row is to check for any blockages or clogs in the nozzle, and to verify that the material you are trying