D-ToxoG error

Hi,

I'm using D-ToxoG and I'm confronted with the error message as follows:
Reference to non-existent field 'i_picard_oxoQ'.

Error in generateMutations (line 46)
unameOxoQ = mafTable.i_picard_oxoQ(unameIndices);

Error in startFilterMAFFile (line 277)
[M, M_A, M_nA] = generateMutations(mafTable, unameIndices);

I wonder why this error occurs and how I can fix this.
I would appreciate for your help!

Best,
Weilai