InvalidArgumentException: The error value must be a string or an object which can be cast to a string

[Dannymh]

I have some things that operate off of custom fields. I changed a custom thread field from numeric and made as whole number to unchecking that box and started getting this error. I can't seem to find where or what might be causing it. I changed the thread field back by rechecking the box and the error is still there.

Any ideas?

Code:

[LIST]
[*]InvalidArgumentException: The error value must be a string or an object which can be cast to a string
[*]src/XF/Mvc/Reply/Error.php:79
[*]Generated by...

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InvalidArgumentException: The error value must be a string or an object which can be cast to a string

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