I had placed a command block that when other command gave an output, removed points from a scoreboard but when the statement becomed true it didnt power the repeater that was infront of the comparator, it powered one in a side where there was no comparator.
the score started dropping crazily i broke the command block that subtracted but it still subtracted.
i reseted the score and it still subtracted...
Please I need help.

I finally realised that the redstone wasnt a bug it was just that i didnt have repeater next to a block and the signal passed trough there.(in the photo is fixed) But i still have the scoreboards problem.
I had to rebuild some the commands and while i has testing it the madera score also got infected by the problem.
In the photo the first command block from the left next to a unpowered comparator:testfor @e[type=Bat,name=No_Recoger_Oro]
The other command blocks next to umpowered comparators have similar command just changing Oro to Madera, Favor and Comida.
The outputs from each comparator go to 2 command blocks one says:/scoreboard players add Desempleo Recursos 1
and the other says:/scoreboard players remove AldeOro Aldeanos 1 changing also Oro to madera...
The command block that hasnt got a comparator says tp @e[type=Bat] ~ ~-2 ~
And the powered comaparator doesnt have anything related to this.
On other command block that isnt shown in the photo I have 4 commands in a very slow clock that say:/scoreboard players operation Madera Recursos += AldeMadera Aldeanos changing both of these with Oro, Comida and Favor.
If you need more info i cant upload the map if you want.
Thank you for your time.