testIsNormalSegmentation failing

[figgeous]

Very nice program, but I'm having difficulty getting it to run. After entering me relation and functional dependencies, I ask to print the candidate key and get this error make: *** [Makefile:13: run] Segmentation fault (core dumped). When running make test in the tests folder I get the following:
g++ -c -std=c++11 -Werror -c setstr_compare.cc -o setstr_compare.o g++ -c -std=c++11 -Werror -c utility.cc -o utility.o g++ -c -std=c++11 -Werror -c dependency.cc -o dependency.o g++ -c -std=c++11 -Werror -c relation.cc -o relation.o g++ -c -std=c++11 -Werror -c user_interface.cc -o user_interface.o make[1]: Leaving directory '/home/figgeous/Documents/Database/Decomposer' Running test for setstr_compare class setstr_compare_test::testLess : OK OK (1) Running test for utility functions utility_test::testContains : OK utility_test::testIsPart : OK utility_test::testIsEqual : OK utility_test::testIsSubset : OK utility_test::testContains2 : OK utility_test::testOutOperator : OK utility_test::testSubOperator : OK utility_test::testSubOperator1 : OK OK (8) Running test for Dependency class dependency_test::testDependency : OK dependency_test::testGetLhs : OK dependency_test::testGetRhs : OK dependency_test::testGetAttribs : OK dependency_test::testDependency2 : OK dependency_test::testAddLhs : OK dependency_test::testAddRhs : OK dependency_test::testRemoveLhs : OK dependency_test::testRemoveRhs : OK dependency_test::testIsPresentLhs : OK dependency_test::testIsPresentRhs : OK dependency_test::testIsPresent : OK dependency_test::testSize : OK dependency_test::testSetLhs : OK dependency_test::testSetRhs : OK dependency_test::testClearLhs : OK dependency_test::testClearRhs : OK dependency_test::testClear : OK dependency_test::testOperatorOut : OK dependency_test::testOperatorLess : OK dependency_test::testOperatorGreat : OK dependency_test::testOperatorEq : OK dependency_test::testOperatorNotEq : OK dependency_test::testOperatorPlusEq : OK OK (24) Running test for Relation class relation_test::testRelation : OK relation_test::testRelation2 : OK relation_test::testAddAtributte : OK relation_test::testAddAtributtes : OK relation_test::testRemoveAtributte : OK relation_test::testRemoveDependency : OK relation_test::testRemoveDependency2 : OK relation_test::testAddDependencies : OK relation_test::testAddDependency : OK relation_test::testAddDependency2 : OK relation_test::testFindDepLHS : OK relation_test::testIsNormalSegmentation fault (core dumped)

Running Ubutun 22.4

Any chance that this could be fixed? It would be great to be able to use this program. Thanks