ActinicShipping.fil is corrupt

[ship]

When a user selects the destination country the following error message is displayed.

"A General Script Error Occurred
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Error: ../acatalog/ActinicShipping.fil is corrupt. The signature is invalid.
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Press the Browser back button and try again or contact the site owner"

The site was working before this error occurred and no changes were made. After making no changes and just doing a "Refresh Website" the website is now working again.

Has this happened to anyone else? Any ideas on what could have cause this error and how to prevent it occurring again?

[pinbrook]

Probably just one of those things.... as you say a refresh is the remedy as it recreates all .fil