Update Mash Issues

When I tried to update mash my ender 5 halt M112. It works fine yesterday, i don't recall any change i made with the printer.

What does G20 T command means?

Here's my log:

Recv: T:24.43 /0.00 B:60.26 /60.00 @:0 B@:127 W:2
Recv: echo:busy: processing
Recv: T:24.41 /0.00 B:60.40 /60.00 @:0 B@:127 W:1
Recv: T:24.41 /0.00 B:60.40 /60.00 @:0 B@:127
Recv: T:24.45 /0.00 B:60.54 /60.00 @:0 B@:0 W:0
Recv: echo:busy: processing
Recv: ok
Send: M300 S1000 P500
Recv: ok
Send: M117 Creating the bed mesh levels
Recv: ok
Send: M155 S30
Recv: ok
Send: G29 T
Recv: echo:busy: processing
Recv: echo:busy: processing
Recv: echo:busy: processing
Recv: echo:busy: processing
Recv: Error:Probing Failed
Changing monitoring state from "Operational" to "Error"

Hello @PuffUchu !

Quite a nice show
M A S H_TV_title_screen

So do you mean G20 T or G29T?

https://reprap.org/wiki/G-code#G20:_Set_Units_to_Inches

https://reprap.org/wiki/G-code#G29:_Detailed_Z-Probe

Send: G29 T
Recv: echo:busy: processing
Recv: echo:busy: processing
Recv: echo:busy: processing
Recv: echo:busy: processing
Recv: Error:Probing Failed
Changing monitoring state from "Operational" to "Error"

This error usually occurs when the probing fails.

Please attach the systeminfo bundle to your next post. It was requested in the template you deleted.

Try levelling the bed manually. If it is too far away from being level, it cannot be compensated with the probe.