On that note, I'd suggest stopping the server, removing the essentials folder and restarting the server. Make sure you just backspace the # and not put anymore spaces in it or it will break.
Op yourself. Go in the essentials config under the signs it should be like this enabledSigns: #- color #- balance #- buy #- sell #- trade #- free #- disposal #- warp #- kit #- mail #- enchant #- gamemode #- heal #- info #- spawnmob #- repair #- time #- weather
make it like this: enabledSigns: #- color #- balance - buy - sell #- trade #- free #- disposal #- warp #- kit #- mail #- enchant #- gamemode #- heal #- info #- spawnmob #- repair #- time #- weather removing the # Once done. Make a sign like this: say you want to sell 1 pumpkin for $1 [Sell] 1 pumpkin $1
