According to your previous status, it looks like you were able to download more than 600 out of 1000 of the blocks. Why dont you quadruple the number of failuire attemps and try again ?
No need to delete the data directory.
The high number of errors is because not all the relays completed the upgrade. It will get better in few days.
Try to set CatchupBlockDownloadRetryAttempts to 4000 in the config.json and see if that helps.