Ender 5 Plus not going "home" (or zero) correctly
Is your BL touch flashing red, or is it solid red? Flashing red means that the bed is raised up too high, there needs to be enough clearance for the measurement probe to fully extend when you start it up.
Even if it is not flashing red, try moving the print head and bed manually:

Remove your SD Card, unplug any computer hooked to the printer's USB cable

Boot UP Printer

Tap Settings

Tap Move

Move Z down at least 50 mm from print head

Move Y so it is resting against the stop switch

Move X so it is resting against the stop switch

Turn it off and wait for a minute or so

Turn it back on

Tap Settings

Tap Leveling - this will make it do the homing function


This should get you to the correct home position, but if you are still having problems, you need to re-level your printer manually and you may need to adjust the Z-offset.
The Z-offset tells tells the printer to Add or Subtract height on the Z-plane to get the nozzle close enough to the print bed that the extrusion sticks.
Let us know if this works for you, or if you found a different solution.