Chore/update error message (backport #8816)

[mergify[bot]]

What is the purpose of the change

Updating error message on panic

Where is the change documented?

• [ ] Specification (x/{module}/README.md)
• [ ] Osmosis documentation site
• [ ] Code comments?
• [ ] N/A

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  This is an automatic backport of pull request #8816 done by Mergify.