How to remove errors in Wordpress after transfer to hosting?

Question

WordPress

Good day!
After transferring the site from OpenServer to hosting, the media loader does not work, as well as some plugins. There are the following errors in the console (see screenshot).
Tell me where to dig. Reinstalled WP core - no results.

Answer 1

Hello!
Typically, when transferring a site, there may be the following problems:
1) the files were not transferred in full. Connect with Total Commander and synchronize directories.
2) The database was transferred incompletely or incorrectly. (Re-import the database). It is advisable to change only the domain in the wp_options table when migrating the database. And after the transfer to the hosting, install the better search replace plugin and completely replace the old domain with a new one. Do not replace the domain directly in the database dump with a search and replace, as you may lose data. For example, serialized data...
3) Check chmod permissions on directories and files. 755 - for files, 644 for folders
4) if you have a vps, then check the user rights of apache or nginx.
5) Turn on wp_debug debug and look at the logs