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mcgryboski said:

Is there a way to get Garmin to upload my run?

Start with trying a manual upload to Garmin Connect Web - How Do I Manually Upload an Activity I Recorded to Garmin Connect?

If you get any message other than Import Complete, then there is a problem with the file. Attach it to this thread. We can take a look to see if it is repairable.

• Zip the file, then in a reply post Insert >> Image/video/file >> click Upload >> browse for file >> OK.
• Or upload the fit file to a reputable file sharing service, such as OneDrive, Google Drive, Dropbox, make the file public, then paste a link to the file in your post.
• Or if you'd rather your activity remained private, you can send me a private message.

mcgryboski said:

I paused it on multiple occasions due to stopping. Does doing that increase my chance of getting this error? 

Some older, entry level models were prone to this. The Forerunner 10, which was entry level in 2012 would certainly fall into that category.