I discoonected when I start a new game in a tornament, it makes me lost a couple of games

I want my rating be back

You can often recover by refreshing CTRL F5.
Do not worry about rating: it will readjust itself quickly.
You are now slightly underrated, so you will gain more rating form a win and lose less rating from a loss.

@tpr said ^

You can often recover by refreshing CTRL F5.
Do not worry about rating: it will readjust itself quickly.
You are now slightly underrated, so you will gain more rating form a win and lose less rating from a loss.

but I play on the tablet, I cannot refresh it,and lichess system even thinks I'm sandbagging

@Zhukov14 said ^

You can often recover by refreshing CTRL F5.
Do not worry about rating: it will readjust itself quickly.
You are now slightly underrated, so you will gain more rating form a win and lose less rating from a loss.

but I play on the tablet, I cannot refresh it,and lichess system even thinks I'm sandbagging

close the app and open the tournament again.