After googling the error I came up with the below command which fixed the issue.
Open a terminal and cd to
<wine prefix path>/drive_c/Program Files (x86)/Battle.net/Battle.net.<battle net version here>/platforms
Be sure to replace <wine prefix path> with the actual path to your wine prefix. Likewise <battle net version here> will be a string of numbers, make sure you have the right path.
Once there run the below command
setfattr -x user.DOSATTRIB qwindows.dll
for more information about the setattr comand check out the below link.