I'm getting the following error message email which seems to relate to Dreamhouse which i have no prior knowledge of:

Apex script unhandled exception by user/organization: 0051r000008xyTs/00D1r000000fua5

Failed to process Queueable job for class SlackOpportunityPublisher for job ID 7074J00000BdV15.

caused by: System.NullPointerException: Argument 1 cannot be null

Class.SlackOpportunityPublisher.QueueableSlackCall.execute: line 36, column 1

Can you help me to stop getting such errors in the future?

thanks,

Jonathan