Builds are disabled due to negative balance despite having credits

Hi there,

Although I still have some credits in my free plan I see warning at the top saying ‘Builds have been temporarily disabled for public repositories due to a negative credit balance’
Therefore, travis-ci for my PRs does not work anymore.
Any clue how to fix this?

You need to enable the “Consume paid credits for OSS” checkbox if you want to build your public repositories using regular credits.