I changed the contact point of the tail wheel. Let me try to explain.
Go to the contact point section in the aircraft config and change the bold line
[contact_points]
static_pitch = 15
static_cg_height = 6.2
tailwheel_lock = 0
gear_system_type = 0
max_number_of_points = 6
point.0 = 1, -19.25, 0, -1.9, 1500, 0, 0.4, 45, 0.25, 2.5, 0.88, 0, 0, 0, 0, 0