You performed wrong update to table definition in SE11, which led to a table conversion in SE14. But the change is not what you want actually.
Table conversion stopped with "Error in step 5" in SE14:
Click "Analyze adjustment", you can find more details:
Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.
NetWeaver ABAP based systems
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