Dfrobot voice recognition and espnow

I’m trying to use the offline voice recognition module with an esp8266 and espnow.

the module is connected to the esp via i2c . When the esp receives the command ids it transmits a specific word via espnow . The word depend on the id received.

if I leave the voice recognition function in the code the words are not transmitted correctly but as sone as I remove the voice recognition function from the code the words are transmitted correctly. Do you guys think that the module functions conflict with the espnow functions?