When I try to do anything in regards to editing my site (backend) with the wordpress dashboard, I recieve this error:

Fatal error: Cannot call overloaded function for non-object in /home/p31128/public_html/precisionplanpro.com/wp-content/plugins/find-replace/mijnpress_plugin_framework.php on line 109

Due to this error, I cannot disable the plugin or uninstall it.

This error only occurs on the frontend when I am trying to edit the site from the backend.

Please Help!! This is urgent since I cannot make any changes to the site..

I tried your Find and Replace plugin to replace the following:
(requires Acrobat Reader)
with a blank space (I just wanted to just get rid of it, but the plugin requires a replacement value). The plugin said it ran, but didn’t tell me which pages it searched or how many results it found. It didn’t delete the unwanted string.