Fatal error: Out of memory (allocated 4194304) (tried to allocate 655360 bytes) in /home/momopi/public_html/wp-includes/functions.php on line 6621

Fatal error: Uncaught Error: Call to undefined function _canonical_charset() in /home/momopi/public_html/wp-includes/functions.php:4313 Stack trace: #0 /home/momopi/public_html/wp-includes/functions.php(3804): _wp_die_process_input('<p>There has be...', 'WordPress &rsaq...', Array) #1 /home/momopi/public_html/wp-includes/functions.php(3787): _default_wp_die_handler(Object(WP_Error), '', Array) #2 /home/momopi/public_html/wp-includes/class-wp-fatal-error-handler.php(241): wp_die(Object(WP_Error), '', Array) #3 /home/momopi/public_html/wp-includes/class-wp-fatal-error-handler.php(156): WP_Fatal_Error_Handler->display_default_error_template(Array, false) #4 /home/momopi/public_html/wp-includes/class-wp-fatal-error-handler.php(60): WP_Fatal_Error_Handler->display_error_template(Array, false) #5 [internal function]: WP_Fatal_Error_Handler->handle() #6 {main} thrown in /home/momopi/public_html/wp-includes/functions.php on line 4313