The same thing happened to me and after trying a few things I found out the disk space on my Bluehost package was full even though I was on an ‘unlimited’ package. Go to Bluehost and check to see if you have any disk space left. If not, you’ll need to upgrade storage just like I had to.
Bill
I’ve managed to resolve this issue. I had run out of Disk Space on my Bluehost package even though it was referred to as ‘unlimited’ space. I deleted some files but eventually I had to upgrade my hosting package and then I was able to update the WordPress version and my theme. The original wording on the error message was very misleading.
I am using wpdevart 1.3.8. I know this is an old version but I can’t upgrade because of inconsistent file permissions’. How can I change the font size?
