Since HA update to 2021.7.0 (docker on Debian) I get this error:
2021-07-07 18:16:54 ERROR (MainThread) [homeassistant.components.mobile_app.notify] The length of [apns-collapse-id] header must not exceed [64] bytes. This message is generated externally to Home Assistant.
2021-07-07 18:16:55 ERROR (MainThread) [homeassistant.components.mobile_app.notify] The length of [apns-collapse-id] header must not exceed [64] bytes. This message is generated externally to Home Assistant.
2021-07-07 18:16:55 ERROR (MainThread) [homeassistant.components.mobile_app.notify] The length of [apns-collapse-id] header must not exceed [64] bytes. This message is generated externally to Home Assistant.
2021-07-07 18:24:30 ERROR (MainThread) [homeassistant.components.mobile_app.notify] The length of [apns-collapse-id] header must not exceed [64] bytes. This message is generated externally to Home Assistant.
2021-07-07 18:31:36 ERROR (MainThread) [homeassistant.components.mobile_app.notify] The length of [apns-collapse-id] header must not exceed [64] bytes. This message is generated externally to Home Assistant.