Hello guys!
Sadly im back once again with more issues after upgrade to matomo4.
Today I have seen my php-fpm logs flooded with the following error:
[02-Dec-2020 11:47:49 UTC] Error in Matomo (tracker): Error query: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'last_idlink_va' in 'field list' In query: SELECT visit_last_action_time, visit_first_action_time, idvisitor, idvisit, user_id, visit_exit_idaction_url, visit_exit_idaction_name, visitor_returning, visitor_seconds_since_first, visitor_seconds_since_order, visitor_count_visits, visit_goal_buyer, location_country, location_region, location_city, location_latitude, location_longitude, referer_name, referer_keyword, referer_type, idsite, profilable, visit_entry_idaction_url, visit_total_actions, visit_total_interactions, visit_total_searches, referer_url, config_browser_name, config_client_type, config_device_brand, config_device_model, config_device_type, visit_total_events, visit_total_time, location_ip, location_browser_lang, last_idlink_va, custom_var_k1, custom_var_v1, custom_var_k2, custom_var_v2, custom_var_k3, custom_var_v3, custom_var_k4, custom_var_v4, custom_var_k5, custom_var_v5 FROM matomo_log_visit FORCE INDEX (index_idsite_idvisitor) WHERE idsite = ? AND visit_last_action_time <= ? AND idvisitor = ? ORDER BY visit_last_action_time DESC LIMIT 1 Parameters:
Any idea what can be causing this and how to fix it? 
Ty in advance.
Best regards