Prusa MK3S+ lost bed level calibration.  

Prusa MK3S+ lost bed level calibration.

Need help. No more bed leveling on my printer. Here is my event log:

1. I had everything perfect for months of printing, was printing a thing and had nozzle clogged.
2. I heated nozzle to 260 degree, cleaned everything and started my print again.
3. I discovered that I don't have perfectly leveled bed anymore. If I live adjust Z - I can have normal first layer Z only in the middle of the rear-left side. But no more first layer on other area. It even does not stick to sheet. Too high.
4. I made full reset of everything, re-calibrated, re-adjusted my P.I.N.D.A., tried bed-level correct but setting values even to -100 is not enough.

Physically nothing changed. I checked everything on printing head and bed. Sheet is good - no deformation.

I made P.I.N.D.A. tests - it works good. Here is my Z80 and Z81 log:

>>>G80
SENDING:G80
echo:Enqueing to the front: "G28 W0"
tmc2130_home_enter(axes_mask=0x04)
tmc2130_home_exit tmc2130_sg_homing_axes_mask=0x04
tmc2130_home_enter(axes_mask=0x01)
  0 step=62 mscnt= 993
tmc2130_goto_step 0 61 2 1000
tmc2130_home_exit tmc2130_sg_homing_axes_mask=0x01
tmc2130_home_enter(axes_mask=0x02)
echo:busy: processing
  0 step=34 mscnt= 548
tmc2130_goto_step 1 33 2 1000
tmc2130_home_exit tmc2130_sg_homing_axes_mask=0x02
echo:busy: processing
echo:busy: processing
echo:busy: processing
echo:busy: processing
echo:busy: processing
echo:busy: processing
echo:busy: processing
echo:busy: processing
echo:busy: processing
echo:busy: processing
echo:busy: processing
echo:busy: processing
LCD status changed
>>>G81
SENDING:G81
Num X,Y: 7,7
Z search height: 5.00
Measured points:
  -0.11500  -0.02667  0.02450  0.03850  0.01533  -0.04500  -0.14250
  -0.03972  0.03244  0.06901  0.07000  0.03540  -0.03478  -0.14056
  0.02061  0.07246  0.09209  0.07950  0.03470  -0.04232  -0.15156
  0.06600  0.09339  0.09372  0.06700  0.01322  -0.06761  -0.17550
  0.09644  0.09523  0.07392  0.03250  -0.02902  -0.11065  -0.21239
  0.11194  0.07799  0.03268  -0.02400  -0.09204  -0.17145  -0.26222
  0.11250  0.04167  -0.03000  -0.10250  -0.17583  -0.25000  -0.32500