Unknown Issue with Hybrid System

Hey all, after using the Hybrid Assistant app on the Google Playstore to find out that block 1 is bad in my battery i replaced the two cells in the block and put it back in the car. I originally ran the OBD scanner because i had a loss of power to the gas pedal and the hybrid system warning came up and thats how i found out about the bad block but i figured after replacing the bad block it would stop and drive fine. But the same issues are still happening i'll list the ones i can think of below.
-Delayed Throttle Response (have to slam the peddle to get any power sometimes)
-the cooling fan for the battery is constantly on and sucking air
-after turning the engine off it shakes quite heavily
-barely any power in the gas pedal (flooring it and i barely get to 50mph after 50-60 seconds
TLDR: i replaced a bad block and the issues above didnt go away
any help would be appreciated, im quite capable to fix what the issue is if i know what it is.

 

i replaced both the modules in block 1, currently getting code P3011 still and the previous issues still apply

it is not a bad head gasket, fully related to the battery

while the Hybrid Assistant cant read codes it can tell me which block is bad. I use Torque Lite to read/clear the codes

 

i appreciate the response, and i mean exactly what i said with the engine. it shakes when it turns off and only then. there is no coolant in the oil and no other indication of a gasket leak, the hybrid assistant app says only block 1 is bad and i replaced both modules in block 1 with good new modules from a reliable source. the other blocks in the battery showed to be nominal in their charge and have no issues.
what it FEELS like to me is a sensor of some sort might be bad, or something else in the hybrid system could be tripping something that isnt supposed to be tripped but i truly dont know.