One of the keys used in this transaction is not valid.
[Error Code: 1006] invalid proposal key: public key 0 on account 1965ddcedd4fc182 does not have a valid signature: either the payload or the envelope should provide proposal signatures could not find import [Error Code: 1006] invalid proposal key: public key 0 on account 1965ddcedd4fc182 does not have a valid signature: either the payload or the envelope should provide proposal signatures%!(EXTRA string=No contracts found for identifier=A.1965ddcedd4fc182.FungibleToken) could not find import [Error Code: 1006] invalid proposal key: public key 0 on account 1965ddcedd4fc182 does not have a valid signature: either the payload or the envelope should provide proposal signatures could not find import [Error Code: 1006] invalid proposal key: public key 0 on account 1965ddcedd4fc182 does not have a valid signature: either the payload or the envelope should provide proposal signatures%!!(string=No contracts found for identifier=A.1965ddcedd4fc182.FlowToken)(EXTRA string=No contracts found for identifier=A.1965ddcedd4fc182.FungibleToken)