What does it mean if I'm unable to complete my 90-day report online in Thailand?

The user encountered an issue while trying to submit their 90-day report online in Thailand, receiving a message that initially puzzled them. Comments from the community clarified that the reason for the issue is due to the user not having completed an in-person 90-day report for their current visa extension. To use the online reporting system, a prior in-person report is required. Community members also advised on checking the reporting timeline and mentioned specifics like not needing to include a flight number during the reporting process.