Hi there @LaraLing, welcome aboard to our Community. I see you have tried some troubleshooting steps on your own to address this issue, and that is great.
I'm going to share this post with you for additional help, but be aware you might find similar suggestions from what you have tried so far, but I think it wont hurt to revisit some of the options to address this issue: Having trouble syncing? (here's how to fix this).
Lets give it a try and keep me posted, I'll be around.
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