Should I quit my second job? I get paid more at my first one

I have worked at a grocery store since May of 2017, and at a restaurant since July of 2017 because I needed extra money to pay my bills. The grocery store pays a dollar more than the restaurant. I almost lost my second job because a manager said I left in the middle of a shift in which I did not do. Because time is money. The bigger boss had to step in and told the main manager not to put me on the schedule until I reached out. Well I didn’t know the new schedule was put out because I hadn’t gone in and she had me off this past weekend. Since I spoke to the bigger boss and the leading manager that was under him they said I had one more shot and to listen and communicate with everyone.. but I not once miscommunications with any of the managers. So what should I do?

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