Why Facebook/Instagram access expires
Facebook and Instagram access expires roughly every 60 days — an email reminder goes out when it's about to.
Facebook's access to your account expires roughly every 60 days — this is how Meta's long-lived tokens work, not something EverySqueeze can turn off. When it expires, posting to Facebook (and Instagram, if it posts through your Facebook Page) stops until you reconnect.
In Settings → Accounts & platforms on a computer, the Facebook card shows Connected until <date> when you open it. In the last 14 days the card's pill turns amber and reads Reconnect by <date> (red inside 3 days), and the card says Expires <date>, reconnect before then. Once access has run out it says Expired <date>. Reconnect.
An email reminder goes out once the connection is within 7 days of expiring, addressed to your account email, naming the date in your saved time zone. If Instagram posts through its own connection rather than your Facebook Page, the reminder names Facebook only, since Instagram isn't affected by that expiry.
Reconnecting before or after expiry keeps your saved settings — see Reconnect a platform.