Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: panic: Could not borrow reference to the contract's Vault!
  --> 8d24eb3553447745.TestToken:75:13
   |
75 |           ?? panic("Could not borrow reference to the contract's Vault!")
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^