Error -32000 when withdrawing

When I try to withdraw BTC from my segwit/bech32/bc1 address, I receive an error: Error making request to UNKNOWN/Default: JSON-RPC Error:

Type: Server error

Code: -32000

Message: Bad status code returned: ‘500’. result body: '{“result”:null,“error”:{“code”:-26,“message”:“non-mandatory-script-verify-flag (Signature must be zero for failed CHECK(MULTI)SIG operation)”},“id”:0} '.

Please help, thanks.