Hi Katia,
This problem may be linked to your server settings. You need to increase your max_input_vars php_value.
Please try the following:
1) Open your .htaccess file via FTP;
2) Add the string php_value max_input_vars 10000 to the top of file;
3) Save changes.
If the problem still remains, please contact your hosting provider with the issue.
Eugenia
Best Regards
Hi,
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