I forgot to check for errors for fragment XD

pog.cpp

@@ -74,6 +74,13 @@ int main() {
   glShaderSource(fragmentShader, 1, &fragmentShaderSource, NULL);
   glCompileShader(fragmentShader); // compile fragment shader
 
+  glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
+  if (!success) {
+    glGetShaderInfoLog(vertex, 512, NULL, infoLog);
+    std::cout << "ERROR::SHADER::VERTEX::COMPILATION_FAILED\n"
+              << infoLog << std::endl;
+  };
+
   unsigned int shaderProgram;
   shaderProgram = glCreateProgram(); // create shader program