Not able to graph under hostname

[cjc69]

Did a snmp interface statistics data query on host and no network interfaces showed up when click on add graph to hostname. This is happening on all hosts we have in cacti.

Someone had done the following and after this action we were not longer able to create a graph under any host.
1. Created a data query for snmp interfaces for a core switch. no problem
2. Create graph for interfaces within the host. no problem.
3. Noticed graph was not showing ports in name.
4. Tried to rename graph adding the ports, snmp community string and ip. saved it. Did it twice.
5. Noticed that we were unable at that point to add graphs to any hostname.
6. Reboot server. Did not help.
What file might have been modified to cause this problem. I do not know enough about this product to troubleshoot. What do I do to fix the problem? Thanks for your help.

[BSOD2600]

os, cacti, php, mysql, spine versions, etc?

read through http://docs.cacti.net/manual:087:4_help ... #debugging yet?

any errors in the technical support page? cacti.log ?