I cannot merge them as it does not allow me to. it says it cannot merge a parent with a child. any help would be appreciated.
This can be very frustrating when this happens but there are ways to fix it. It usually involves a several step process.
You will need to correct the parent-child relationships and then you will be able to do any merging if necessary. Be sure you keep track of the different ID numbers to help you with any merging that might need to be done.
Below are the links to the Help Center articles that explain how to correct parent and child relationships and then also, how to merge by ID number.
You may also need to edit a spouse relationship. Below is the link to do that.
If you want to reply with specific ID numbers we can provide you with specific directions for this process.
Good luck and thank you for you work in FamilySearch!