run_service.sh fails when RPC responds with an error (non-expected JSON output)

[jmoreira-valory]

-----------------------------------------
Checking Autonolas Protocol service state
-----------------------------------------

Your currently minted on-chain service (id 63) mismatches the fetched trader service (v0.9.1):
  - Local service hash (v0.9.1): bafybeidru4qhpp7wgx2qqkg74rvp7fytvl45bj2iosalwava4j3hhsedjy
  - On-chain service hash (id 63): bafybeid3r54ylrhu7vhrhzqb3vaqrecvpeuksgnfkjryhpt6ofsqqsa2ve

This is most likely caused due to an update of the trader service code.
The script will proceed now to update the on-chain service.
The operator and agent addresses need to have enough funds so that the process is not interrupted.

Checking balance of operator's address (minimum required 0.0500 DAI):
  - Address: 0x3786f91c4dF868B34F7aBB81282B5366B3b20680
  - Balance: 0.0987 DAI
    OK.

Checking balance of agent instance's address (minimum required 0.0500 DAI):
  - Address: 0x4C89CEF0d33018b2e45E31926c61fd63de6cBf80
  - Balance: 0.1906 DAI
    OK.

------------------------------
Updating on-chain service 63
------------------------------

PLEASE, DO NOT INTERRUPT THIS PROCESS.

Cancelling the on-chain service update prematurely could lead to an inconsistent state of the Safe or the on-chain service state, which may require manual intervention to resolve.

[Agent instance] Swapping Safe owner...
  - Starting swap_safe_owner.py script...
  - Safe address: 0xCC986773cF2078A2a9945f1a1DcfA43EE306b351
  - Current owner: 0x4C89CEF0d33018b2e45E31926c61fd63de6cBf80
  - New owner: 0x3786f91c4dF868B34F7aBB81282B5366B3b20680
  - Loading contracts...
  - Building Safe.swapOwner transaction...
  - Signing Safe.swapOwner transaction...
  - Safe.swapOwner transaction sent. Transaction hash: 0x05c846ff0b4d399ca24655655696457ea27e6378f859f4b3a1e790434c814a06
  - Waiting for transaction receipt...
  - Safe.swapOwner transaction successfully mined.
  - Safe owner successfully swapped from 0x4C89CEF0d33018b2e45E31926c61fd63de6cBf80 to 0x3786f91c4dF868B34F7aBB81282B5366B3b20680
[Service owner] Terminating on-chain service 63...

Finished updating on-chain service 63.

Ensuring on-chain service 63 is in DEPLOYED state...
Checking balance of operator's address (minimum required 0.0250 DAI):
  - Address: 0x3786f91c4dF868B34F7aBB81282B5366B3b20680
  - Balance: 0.1085 DAI
    OK.

Something went wrong while deploying on-chain service. The service's state is TERMINATED_BONDED.
Please check the output of the script and the on-chain registry for more information.

Followed by:

/trader-quickstart$ ./run_service.sh 

---------------
 Trader runner 
---------------

This script will assist you in setting up and running the Trader service (https://github.com/valory-xyz/trader).

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/Users/davidminarsch/.pyenv/versions/3.10.4/lib/python3.10/json/__init__.py", line 293, in load
    return loads(fp.read(),
  File "/Users/davidminarsch/.pyenv/versions/3.10.4/lib/python3.10/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
  File "/Users/davidminarsch/.pyenv/versions/3.10.4/lib/python3.10/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/Users/davidminarsch/.pyenv/versions/3.10.4/lib/python3.10/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

[jmoreira-valory]

Addressed in #89