Error in TDL.
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-1: The connection has been disabled.
Step-1: Close Tally Software >> right click on the Tally Software icon and open the file location.
Step-2: Edit the Tally .ini File >> Add the command as highlighted in the below screenshot.
Step-3: Restart the eZee Tally software and check, It will be resolved.
If still not solved please refer attached presentation for step by step process.