Imported Sheet not transporting spell info

Hi. My 5e DM has had to change his game from our old campaign (apparently he made a purchase?). All the players exported their characters and then imported them to the new game. No one's spell info imported. The spells are on the sheets, but when you click on the spell to either attack or show the spell card, a bunch of gobbldygook pops up in the chat window. How do we fix this without deleting the spells and dragging them back onto our sheets?

Simply changing the name of the spell in the spell sheet section and then changing it back will fix the link between the spell page and the attacks and spell casting section. 

Thank you! That sure beats dragging all of the spells back over.