Exceeding dbt limits while documentation generation on DBT cloud

The problem I’m having

The context of why I’m trying to do this

What I’ve already tried

Some example code or error messages

Put code inside backticks
  to preserve indentation
    which is especially important 
      for Python and YAML! 


In our company, we have been used dbt cloud for couple of years. Recently after adding new etl to model processing we faced issues for all our jobs. They are failing on documentation generation with following message:
This run exceeded your account’s run memory limits. Please reach out to support for assistance.

I am not aware of any memory limits on our dbt instance. Could you please advise what might cause this issue?