This error typically occurs when there's invalid or conflicting data in your write to table configuration.
To fix this:
1. Reconfigure your write to table integrations - delete and recreate the affected column
2. Double-check all columns and tables exist and are correctly set up
3. Check for body formatting issues - ensure keys are surrounded by double quotes, proper punctuation/syntax, and no hidden characters
Since you mentioned JSON/HTTP API issues, please copy and paste your JSON configuration into the chat so I can help troubleshoot the specific formatting.