Removing last element of DCRTPoly renders it invalid.

[Smera1d0]

We want to change the C version of openFHE of a project to the python version, but the following error occurs:

encIP = cc.EvalMult(encIP,self.dummy) # logp: 2 * wBits + pBits
RuntimeError: /home/liushuo/openfhe-keep/openfhe-development/src/core/include/lattice/hal/default/dcrtpoly-impl.h:l.695:DropLastElement(): DropLastElement: Removing last element of DCRTPoly renders it invalid.

we check the level of encIP and dummy, the C version and the python version of the level are the same.

It seems that something is wrong with this function——encIP = cc.EvalMult(encIP,self.dummy)

[ai-mannamalai]

Can you post the working snippet of the program to repro the issue?