[FIX] Connect a null server

[djorkaeffalexandre]

Proposed changes

We're receiving an error on on error track platform about some connections of a null server, it's the only point where maybe it can happens, so, we'll check if the server exists and see if the problem is fixed.

Issue(s)

How to test or reproduce

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Types of changes

• Bugfix (non-breaking change which fixes an issue)
• Improvement (non-breaking change which improves a current function)
• New feature (non-breaking change which adds functionality)
• Documentation update (if none of the other choices apply)

Checklist

• I have read the CONTRIBUTING doc
• I have signed the CLA
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if applicable)
• I have added necessary documentation (if applicable)
• Any dependent changes have been merged and published in downstream modules

Further comments