Notifications of exceptions in debug output

When running my program compiled with vc in debug mode under creator I get these notifications informing about exceptions.

Exception at 0x75cfe124, code: 0x406d1388: Startup complete, flags=0x0
Exception at 0x75cfe124, code: 0x6bb: , flags=0x1 (execution cannot be continued)
Exception at 0x75cfe124, code: 0x6bb: , flags=0x1 (execution cannot be continued)
Exception at 0x75cfe124, code: 0x6bb: , flags=0x1 (execution cannot be continued)

What are they? What could be the reason they are thrown?