New classes/api error messages, IOS APP

I am getting a lot of these with IOS App:

E_NOTICE (8) classes/api.php:102 Undefined index: is_cat 1. classes/api.php(102): ttrss_error_handler(8, Undefined index: is_cat, classes/api.php, 102, [{“feed_id”:null}) 2. api/index.php(55): getUnread() Real IP: xxx.xxx.175.228 Forwarded Protocol: https Remote IP: xxx.xxx.175.228 Request URI: /api/ User agent: tiny Reader/2.1.4 (com.pluchon.tiny-Reader; build:2.1.4.2; iOS 14.4.0) Alamofire/4.9.1 matthias 20:13
E_NOTICE (8) classes/api.php:101 Undefined index: feed_id 1. classes/api.php(101): ttrss_error_handler(8, Undefined index: feed_id, classes/api.php, 101, [[]) 2. api/index.php(55): getUnread() Real IP: xxx.xxx.175.228 Forwarded Protocol: https Remote IP: xxx.xxx.175.228 Request URI: /api/ User agent: tiny Reader/2.1.4 (com.pluchon.tiny-Reader; build:2.1.4.2; iOS 14.4.0) Alamofire/4.9.1