issue with compiling a liquid bridge model

Hi,
I'm trying to implement a liquid bridge model and wanted to use the available washino model in LIGGGHTS as starting point. So I just renamed the file:
cohesion_model_washino_capillary_viscous.h
cohesion_model_lqb.h

and within the file adjusted accordingly the name. Also for the identifier, gave it a value of 9:
#ifdef COHESION_MODEL
COHESION_MODEL(COHESION_LQB,lqb,9)
#else

When I try to compile the code I get error regarding redefinition of the model parameters. E.g.

// ------------ part of compilation
In file included from ../style_cohesion_model.h:5:0,
from ../granular_styles.cpp:74:
../cohesion_model_washino_capillary_viscous.h: In function ‘VectorProperty* MODEL_PARAMS::createMaxLiquidContent(PropertyRegistry&, const char*, bool)’:
../cohesion_model_washino_capillary_viscous.h:82:35: error: redefinition of ‘VectorProperty* MODEL_PARAMS::createMaxLiquidContent(PropertyRegistry&, const char*, bool)’
inline static VectorProperty* createMaxLiquidContent(PropertyRegistry & registry, const char * caller, bool sanity_checks)
^
In file included from ../style_cohesion_model.h:2:0,
from ../granular_styles.cpp:74:
../cohesion_model_lqb.h:82:35: error: ‘VectorProperty* MODEL_PARAMS::createMaxLiquidContent(PropertyRegistry&, const char*, bool)’ previously defined here
inline static VectorProperty* createMaxLiquidContent(PropertyRegistry & registry, const char * caller, bool sanity_checks)
// --------------------------------

Attached the complete log and code. So just wondering how can I fix this.
Thank you.

Ali