The audit that your storage node received had a recoverable error, so don’t worry about it.
Repair traffic only happens when a satellite repairs some data and your storage node can be involved in it. More data and free space, the more chances that your node is needed for any repair operations.
You don’t have to worry about repairs either.
Please, bear in mind that your storage node is new hence it’s in the vetting process so the amount of data that it will receive before it is vetted is lower. Your node should be vetted once it passes 100 audits.
Consider watching the logs.
If you find an error and there isn’t listed on Error Codes: What they mean and Severity Level [READ FIRST] and there isn’t already posted, please report it.