Examine your Framework and make sure it does not reference (or default) to using anything that starts with UF_* or DF_* . If necessary copy the UF_* or DF_* object's source code to create your own objects then alter your Framework to use them instead.
That means that the shipped Web Page UF_OEXEC should not be shipped as part of your application.
Review the shipped source code of UF_OEXEC and follow the instructions to create your own entry point Web Page.