Loading pages switching second language

First of all check your server’s error.log right after the error occurs for details.

Thank you for reply. I’m not able to understand anything about the sequent error.log. Can you help me?
studioidinifotografia.com [Mon Mar 07 10:54:19 2022] [error] [pid 8268] mod_proxy_fcgi.c(888): [client 93.34.88.226:0] AH01071: Got error ‘n_graph_image_source= 'featured-image',open_graph_image_meta= '{\\"width\\":2544,\\"height\\":1676,\\"url\\":\\"https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e15...PHP message: WordPress database error Unknown column 'estimated_reading_time_minutes' in 'field list' for query UPDATEMpS_yoast_indexableSETobject_id= '1546',object_type= 'post',object_sub_type= 'page',permalink= 'https://www.studioidinifotografia.com/gb/fotografia-di-opere-darte/',primary_focus_keyword_score= NULL,readability_score= '90',is_cornerstone= '0',is_robots_noindex= NULL,is_robots_nofollow= '0',is_robots_noimageindex= NULL,is_robots_noarchive= NULL,is_robots_nosnippet= NULL,open_graph_image= 'https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e1594290486330.jpg',open_graph_image_id= '2263',open_graph_image_source= 'featured-image',open_graph_image_meta= '{\\"width\\":2544,\\"height\\":1676,\\"url\\":\\"https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e15...PHP message: WordPress database error Unknown column 'estimated_reading_time_minutes' in 'field list' for query UPDATEMpS_yoast_indexableSETobject_id= '1546',object_type= 'post',object_sub_type= 'page',permalink= 'https://www.studioidinifotografia.com/gb/fotografia-di-opere-darte/',primary_focus_keyword_score= NULL,readability_score= '90',is_cornerstone= '0',is_robots_noindex= NULL,is_robots_nofollow= '0',is_robots_noimageindex= NULL,is_robots_noarchive= NULL,is_robots_nosnippet= NULL,open_graph_image= 'https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e1594290486330.jpg',open_graph_image_id= '2263',open_graph_image_source= 'featured-image',open_graph_image_meta= '{\\"width\\":2544,\\"height\\":1676,\\"url\\":\\"https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e15...PHP message: WordPress database error Unknown column 'estimated_reading_time_minutes' in 'field list' for query UPDATEMpS_yoast_indexableSETobject_id= '1546',object_type= 'post',object_sub_type= 'page',permalink= 'https://www.studioidinifotografia.com/gb/fotografia-di-opere-darte/',primary_focus_keyword_score= NULL,readability_score= '90',is_cornerstone= '0',is_robots_noindex= NULL,is_robots_nofollow= '0',is_robots_noimageindex= NULL,is_robots_noarchive= NULL,is_robots_nosnippet= NULL,open_graph_image= 'https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e1594290486330.jpg',open_graph_image_id= '2263',open_graph_image_source= 'featured-image',open_graph_image_meta= '{\\"width\\":2544,\\"height\\":1676,\\"url\\":\\"https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e15...PHP message: WordPress database error Unknown column 'estimated_reading_time_minutes' in 'field list' for query UPDATEMpS_yoast_indexableSETobject_id= '1546',object_type= 'post',object_sub_type= 'page',permalink= 'https://www.studioidinifotografia.com/gb/fotografia-di-opere-darte/',primary_focus_keyword_score= NULL,readability_score= '90',is_cornerstone= '0',is_robots_noindex= NULL,is_robots_nofollow= '0',is_robots_noimageindex= NULL,is_robots_noarchive= NULL,is_robots_nosnippet= NULL,open_graph_image= 'https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e1594290486330.jpg',open_graph_image_id= '2263',open_graph_image_source= 'featured-image',open_graph_image_meta= '{\\"width\\":2544,\\"height\\":1676,\\"url\\":\\"https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e15...PHP message: WordPress database error Unknown column 'estimated_reading_time_minutes' in 'field list' for query UPDATEMpS_yoast_indexableSETobject_id= '1546',object_type= 'post',object_sub_type= 'page',permalink= 'https://www.studioidinifotografia.com/gb/fotografia-di-opere-darte/',primary_focus_keyword_score= NULL,readability_score= '90',is_cornerstone= '0',is_robots_noindex= NULL,is_robots_nofollow= '0',is_robots_noimageindex= NULL,is_robots_noarchive= NULL,is_robots_nosnippet= NULL,open_graph_image= 'https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e1594290486330.jpg',open_graph_image_id= '2263',open_graph_image_source= 'featured-image',open_graph_image_meta` = ‘{\\”width\\”:2544,\\”height\\”:1676,\\”url\\”:\\”https://www.studioidinifotografia.com/wp-content/uploads/2020/07/G.Pellizza_Il-sole-La-Galleria-Nazionale-fotografia-antonio-idini-scaled-e15…PHP message: PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 20480 bytes) in /var/www/vhosts/studioidinifotografia.com/httpdocs/wp-includes/functions.php on line 6916′”

My site, Athena theme, WP 5.9.1, plugin works in the main language, but switching in the gb version no longer loads pages, just a blank page appears.
Here is the error.log:
studioidinifotografia.com [Wed Mar 09 18:12:59 2022] [error] [pid 20970] mod_proxy_fcgi.c(705): [client 93.48.240.206:0] AH01067: Failed to read FastCGI header”
studioidinifotografia.com [Wed Mar 09 18:12:59 2022] [error] [pid 20970] mod_proxy_fcgi.c(1011): (104)Connection reset by peer: [client 93.48.240.206:0] AH01075: Error dispatching request to : ”