I purchased uunlimited sitemap generator and it has been working fine for more than a year. Recently i migrated from AWS to namecheap VPS quasar. Generator is working but it stops with an error after adding few pages. I have to resume it again and again but this issue is still there. Please advise.

Thank you
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at webmaster@example.com to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

Apache Server at build.com.pk Port 443
Hi XML-Sitemaps Support Team,

I have shared my issue to request for your help. Please advise how can i fix this. Thank You.
Hi Sir,

It has been several days since i'm trying to fix my problem and trying to get support from this forum. It has been several days since i shared my credentials. I am getting disappointed to receive no response from the support admin. It is requested to please look into this matter and help me fix my problem. Thank you.