Pythia8 compilation failed with getHook function missing

Hi,

I am currently running MadGraph5 v2.6.7 with Pythia8 installed via mg5_aMC in the package. During four top quark production generation with that setup, I am able to generate events in LHE format up to the Pythia compilation step, where Pythia always give me errors like this below:

Pythia82.cc: In function ‘int main()’:
Pythia82.cc:34:26: error: ‘class Pythia8::CombineMatchingInput’ has no member named ‘getHook’; did you mean ‘setHook’?
     matching = combined->getHook(pythia);
                          ^~~~~~~
Pythia82.cc:40:36: error: no matching function for call to ‘Pythia8::Pythia::setUserHooksPtr(Pythia8::UserHooks*&)’
     pythia.setUserHooksPtr(matching);
                                    ^
In file included from Pythia82.cc:3:0:
/storage_mnt/storage/user/vwachira/LCG_93c/MG5_aMC_v2_6_7/HEPTools/pythia8/include/Pythia8/Pythia.h:136:8: note: candidate: bool Pythia8::Pythia::setUserHooksPtr(Pythia8::UserHooksPtr)
   bool setUserHooksPtr(UserHooksPtr userHooksPtrIn) {
        ^~~~~~~~~~~~~~~
/storage_mnt/storage/user/vwachira/LCG_93c/MG5_aMC_v2_6_7/HEPTools/pythia8/include/Pythia8/Pythia.h:136:8: note: no known conversion for argument 1 from ‘Pythia8::UserHooks*’ to ‘Pythia8::UserHooksPtr {aka std::shared_ptr<Pythia8::UserHooks>}’
make: *** [Pythia82] Error 1
 \

Pythia8 compilation did not succeed, exiting

Could you please explain what could be the cause of this error and how to fix this?

Regards,
Vichayanun