Please check below error:
Fatal error: Method Magento\Ui\TemplateEngine\Xhtml\Result::__toString() must not throw an exception, caught Error: Cannot use string offset as an array in /vendor/magento/module-ui/Component/Wrapper/UiComponent.php on line 0
I can see the above error when I go to the admin > Catalog > Manage Category and choose any category to edit.
Please help me if you face any kind of this issues?
Thanks in advance!