Recently my blog topic has been updated, WordPress prompts me to update but I am unable to complete the update because of insufficient permissions.

Here is my fault, because I use the root permissions when installing new fonts and new plugins, but WordPress only has www permissions, so here you need to modify the fonts and related pages to www permissions, you can successfully complete the upgrade. .

# View permissions

Through ssh into the website theme directory, there are two file owners and user groups are root.

# Modify permissions

Modify file permissions:

chown -R Account Name: User Group Name File or Directory

After modification:

Then run the blog update program again and it will be updated smoothly.