Maybe this will fix the error?

resources/profiles/FlyingBear/machine/FlyingBear Reborn3 0.4 nozzle.json

@@ -5,7 +5,7 @@
   "from": "system",
   "instantiation": "true",
   "inherits": "fdm_klipper_common",
-  "printer_model": "Flying Bear Reborn 2",
+  "printer_model": "FlyingBear Reborn3",
   "nozzle_diameter": [
     "0.4"
   ],
@@ -19,4 +19,4 @@
     "0x300"
   ],
   "printable_height": "350"
-}
+}

resources/profiles/FlyingBear/machine/FlyingBear Reborn3.json

@@ -1,7 +1,7 @@
 {
     "type": "machine_model",
     "name": "Flying Bear Reborn 2",
-    "model_id": "Flying Bear Reborn 2",
+    "model_id": "FlyingBear Reborn3",
     "nozzle_diameter": "0.4",
     "machine_tech": "FFF",
     "family": "FlyingBearDesign",

resources/profiles/FlyingBear/process/0.12mm Fine @FlyingBear Reborn3.json

@@ -5,7 +5,6 @@
 	"from": "system",
 	"instantiation": "true",
 	"inherits": "fdm_process_common",
-
     "bottom_shell_layers": "5",
     "overhang_1_4_speed": "50",
     "overhang_2_4_speed": "30",

resources/profiles/FlyingBear/process/0.20mm Standard @FlyingBear Reborn3.json

@@ -1,12 +1,11 @@
 {
     "type": "process",
     "setting_id": "GP004",
-    "name": "0.20mm Standard @FlyingBear Reborn3",
+    "name": "0.20mm Standard @Flying Bear Reborn 2",
     "from": "system",
     "instantiation": "true",
     "inherits": "fdm_process_common",
     "bottom_shell_layers": "3",
-
     "overhang_1_4_speed": "50",
     "overhang_2_4_speed": "50",
     "overhang_3_4_speed": "30",
@@ -27,6 +26,4 @@
     "compatible_printers": [
     "FlyingBear Reborn3 0.4 nozzle"
     ]
-
-
 }

resources/profiles/FlyingBear/process/0.24mm Draft @FlyingBear Reborn3.json

@@ -1,5 +1,4 @@
 {
-
     "type": "process",
     "setting_id": "GP004",
     "name": "0.24mm Draft @Flying Bear Reborn 2",