(errors/warning) bobbing?

[kepler471]

ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251

[kepler471]

ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Node not found: ../AnimationPlayer:root_node.
   At: scene/main/node.cpp:1381
ERROR: On Animation: 'Bobbing', couldn't resolve track:  '../AnimationPlayer:root_node'.
   At: scene/animation/animation_player.cpp:251
ERROR: Signal 'indicate_room_change' is already connected to given method 'change_room' in that object.
   At: core/object.cpp:1515

[kepler471]

   At: modules/gdscript/gdscript_function.cpp:1882
State Transition: Idle --> Run
State Transition: Run --> Idle
ERROR: body_get_direct_state: Condition "!body->get_space()" is true. Returned: __null
   At: servers/physics_2d/physics_2d_server_sw.cpp:1078
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: body_test_motion: Condition "!body->get_space()" is true. Returned: false
   At: servers/physics_2d/physics_2d_server_sw.cpp:1051
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: body_test_ray_separation: Condition "!body->get_space()" is true. Returned: false
   At: servers/physics_2d/physics_2d_server_sw.cpp:1063
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: body_get_direct_state: Condition "!body->get_space()" is true. Returned: __null
   At: servers/physics_2d/physics_2d_server_sw.cpp:1078
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: body_test_motion: Condition "!body->get_space()" is true. Returned: false
   At: servers/physics_2d/physics_2d_server_sw.cpp:1051
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: body_test_ray_separation: Condition "!body->get_space()" is true. Returned: false
   At: servers/physics_2d/physics_2d_server_sw.cpp:1063
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: body_get_direct_state: Condition "!body->get_space()" is true. Returned: __null
   At: servers/physics_2d/physics_2d_server_sw.cpp:1078
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: body_test_motion: Condition "!body->get_space()" is true. Returned: false
   At: servers/physics_2d/physics_2d_server_sw.cpp:1051
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483
ERROR: body_test_ray_separation: Condition "!body->get_space()" is true. Returned: false
   At: servers/physics_2d/physics_2d_server_sw.cpp:1063
ERROR: get_global_transform: Condition "!is_inside_tree()" is true. Returned: get_transform()
   At: scene/2d/canvas_item.cpp:483