Thanks for your response.
I tried increasing the times on the first three options described on the link you provided.
1) LiteSpeed connection timeout override - Increased to 240
2) PHP execution time in php.ini - Increased to 120
3) LSAPI_MAX_PROCESS_TIME - Couldn't find this option in Litespeed v4.1.13, so I tried increasing lsphp5 Max Idle Time to 60.
Unfortunately, none of these timer increases worked for me.
Do you have any other suggestions that I could try?