xperia e1 issue with micro sd card

[dionysios]

I had an xperia e1 and themicro sd card i had in there doesn't work for deleting files and save in there files i had problems with the device time to time and i fixed it with xperia companion but at some point the card is having this problem and i can see two files with names "default-capability.xml" and "customized-capability.xml" i want to tell me what to do to delete and format the card