Both errors stem from:
gitlab2prov\service_layer\handlers.py", line 87, in serialize
print(serialize_graph(graph, cmd.format), file=f)
Example 1
codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\U0001f61c' in position 10933: character maps to <undefined>
Example 2
codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode character '\U0001f40d' in position 48651: character maps to <undefined>