Hi There,
I could replicate the issue on my end.
When I logged in on your website I saw the error. Switched to French and it looked good, switched back to english and it also looked good.
Do you have any performance or cache plugins? If yes, purge the cache and turn of those plugins.
Also lets try to improve your memory limit.
Hi There,
Would mind adding this in your wp-config.php located at the root directory of your site.
define( 'WP_MEMORY_LIMIT', '256M' );
define( 'WP_MAX_MEMORY_LIMIT', '512M' );
You can add it before the line
/* That’s all, stop editing! Happy blogging. */
Let us know how it goes.
Thanks