Layer Shift
انزياح الطبقات

The print suddenly moves sideways while the rest of the model continues.
Likely causes
- Loose belt
- Obstructed carriage
- Acceleration too high
Check in this order
- Check belt tension
- Move axes by hand
- Review acceleration settings
Settings to try
- Tighten belts evenly
- Clear travel path
- Reduce acceleration for tall prints