CTMBHA.DLL and Lua5.1.dll Problem

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows XP Professional, Service Pack 3, 32 bit
Processor: Intel(R) Celeron(R) CPU 3.06GHz, x86 Family 15 Model 4 Stepping 9
Processor Count: 1
RAM: 2045 Mb
Graphics Card: NVIDIA GeForce 7300 LE, 512 Mb
Hard Drives: C: Total - 52423 MB, Free - 5241 MB; D: Total - 19045 MB, Free - 18970 MB;
Motherboard: Dell Inc., 0WG864
Antivirus: AVG AntiVirus Free Edition 2014, Updated: Yes, On-Demand Scanner: Enabled

Hi,
When I start my computer the warnings CTMBHA.DLL and Lua5.1.dll Problem keep occurring. My computer seems to be working fine but YouTube is running very slow and pauses when I open another window and when I scroll.

Best regards,
Tony Walsh