[FIX] White screen on start on single-server

[AlexAlexandre]

Proposed changes

Fix a white screen when open the app.

Issue(s)

Closes #3302

How to test or reproduce

Using the single-server branch, just open the app

Screenshots

[BEFORE]

[AFTER]

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

N/A

[lgtm-com]

This pull request fixes 2 alerts when merging 6c83a46 into 8ee9a8a - view on LGTM.com

fixed alerts:

• 2 for Unused variable, import, function or class