I have tried to install a
Demo from the
Design Clouds and it works for me at your site. Can you please check that once again.
If you find the same issue, please mentioned the
Demo Name for which you are getting the issue, and please copy your live site to a staging server with the downgraded WordPress version to 5.3, so we could troubleshoot freely without breaking your live site.
Give us access as you did for your live site.
On the other hand, the issue mentioned in the example thread was related to the
MySql Configurations and not related to the theme, in that case, you can also ask your hosting service provider to set the following value for MySql setting variables.
max_allowed_packet to 8mb or 16mb
innodb_log_file_size to 128mb or greater
Also ask your web host to enable
allow_url_fopen. The value must be On in order for your server to receive data from our server. Also, increase the following server settings to the specified value or larger.
memory_limit = 512M
upload_max_filesize = 512M
post_max_size = 512M
max_execution_time = 300
max_input_time = 300
max_allowed_packet = 16Mb
innodb_log_file_size = 128mb