"what does session expired mean on Facebook" is basically when your login session ends, either because of inactivity or a security thing. It’s not a glitch, just Facebook doing its thing.
To fix it, try logging out and back in. If that doesn’t work, clear your browser cache or update the app. Sometimes it’s just a temporary issue, so wait a bit and try again.
If it keeps happening, check Facebook’s Help Center—they’ve got tons of info on this.
To fix it, try logging out and back in. If that doesn’t work, clear your browser cache or update the app. Sometimes it’s just a temporary issue, so wait a bit and try again.
If it keeps happening, check Facebook’s Help Center—they’ve got tons of info on this.