Need help tracking down an access error violation

Question

I'm fairly new to C++ but am working on a program where I'm using unit testing to do the development. The specific unit test in question deals with saving and loading from a binary file, and seems to be throwing an access violation exception code during deallocation at the end of the unit test. If I comment out the line of code that loads from the file, the problem goes away however, which I've assumed means there's something in my load function creating the issue but I can't seem to figure out what's going on. When I step through the unit test, it seems to be saving and loading the file information correctly into the playbook objects.

Can anyone help point me in the right direction?

Unit Test Code:

Playbook testPlays;
        Playbook testPlaysLoad;

        string playName = "Play1";
        int numDLine = 4;
        int numLB = 3;
        vector<int> playerPos = { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 19 };
        vector<int> playerStance = { 2, 1, 0, 0, 1, 2, 2, 3, 2, 3, 3 };
        vector<int> playerBlitzGaps = { 0, 3, 0, 0, 3, 0, 0, 0, 0, 0, 0 };


        testPlays.setName("testPlays");
        testPlays.addPlay(playName, numDLine, numLB, playerPos, playerStance, playerBlitzGaps);
        testPlays.save();

        testPlaysLoad.load(testPlays.getName());

        
        Assert::IsTrue(testPlays == testPlaysLoad);

Load Function Code:

void Playbook::load(string fileName)

std::ifstream loadFile;

//create file path to load file from
string filePath = "./Playbooks/" + fileName + ".playbk";

//open the file
loadFile.open(filePath, std::ios::binary);

//end if file doesn't open correctly
if (loadFile.bad())
{
    return;
}

//read the individual pieces of the play
while (!loadFile.eof())
{
    //create a variable to store each play in one at a time before storing into the vector
    Play curPlay;
    
    loadFile.read((char*)&curPlay.playName, sizeof(curPlay.playName));
    loadFile.read((char*)&curPlay.numDLine, sizeof(curPlay.numDLine));
    loadFile.read((char*)&curPlay.numLB, sizeof(curPlay.numLB));
    
    //temp int variable
    int curInt = 0;
    
    //loop through each element and read it in
    for (int i = 0; i < 11; i++)
    {
        loadFile.read((char*)&curInt, sizeof(int));
        curPlay.playerPos.push_back(curInt);
    }

    //loop through each element and read it in
    for (int i = 0; i < 11; i++)
    {
        loadFile.read((char*)&curInt, sizeof(int));
        curPlay.playerStance.push_back(curInt);
    }
    
    //loop through each element and read it in
    for (int i = 0; i < 11; i++)
    {
        loadFile.read((char*)&curInt, sizeof(int));
        curPlay.playerBlitzGaps.push_back(curInt);
    }
    
    plays.push_back(curPlay);
} 

//close the file
loadFile.close();

//set name of playbook as the file name
setName(fileName);

//set play num to vector size
numPlays = plays.size();

Play definition:

Play(string name, int numLine, int LB, vector<int> pos, vector<int> stance, vector<int> blitzGaps) { playName = name; numDLine = numLine; numLB = LB; playerPos = pos; playerStance = stance; playerBlitzGaps = blitzGaps; }
Play() {
    playName = ""; numDLine = 0; numLB = 0; playerPos = { 0,0,0,0,0,0,0,0,0,0,0 }; playerStance = { 0,0,0,0,0,0,0,0,0,0,0 }; playerBlitzGaps = { 0,0,0,0,0,0,0,0,0,0,0 };
}
~Play() {}

string playName = "";
int numDLine = 0;
int numLB = 0;
vector<int> playerPos = { 0,0,0,0,0,0,0,0,0,0,0 };
vector<int> playerStance = { 0,0,0,0,0,0,0,0,0,0,0 };
vector<int> playerBlitzGaps = { 0,0,0,0,0,0,0,0,0,0,0 };

Playbook definition:

friend bool operator== (Playbook& book1, Playbook& book2);

public: Playbook(); ~Playbook();

void setName(string name);
void setCurrentPlay(int playNum);

string getName();
int getNumPlays();

void addPlay(string name, int numDLine, int numLB, vector<int> playerPos, vector<int> playerStance, vector<int> playerBlitzGaps);
void save();
void load(string fileName);

Play currentPlay;

private: string playbookName = ""; int numPlays = 0;

vector<Play> plays;

Oh, I almost forgot the stack trace:

Stack Trace: 
    _Container_base12::_Orphan_all_unlocked() line 1222
    _Container_base12::_Orphan_all_locked() line 1098
    _Container_base12::_Orphan_all() line 1240
    allocator<char> >::_Tidy_deallocate() line 4618
    char_traits<char>,std::allocator<char> >() line 3005
    Playbook::load() line 168
    PlaybookIO::saveAndLoadPlayblook() line 66