fix error log in order handler

[rickyyangz]

Description

#480 #482

Rationale

1. error messages use different precision
2. we should not expose internal context in the response.

Example

Changes

Notable changes:
*
*

Preflight checks

• build passed (make build)
• tests passed (make test)
• integration tests passed (make integration_test)
• manual transaction test passed (cli invoke)

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