[Urgent] realtime plugin problem

[Maher457]

I have a real problem know i'm not able to re-have the plugins:s it's really urgent please help me!!!!
i tried to re-install the PA 2.8 and re-install all the plugins but i didn't get any of them even in PA 2.8
please what should i do ?
please help i done all the necessary changing global.php,config.php and enter the name of the plugins on it.
i gor this in plugin management see picture

[Maher457]

please answer am so stressed they need cacti on my work

[Maher457]

I solved my problem i have modified the config.php and install manually realtime in plugin management and it works:)
i have one other question and i will install cacti perfectly if u please can help me
i have to measure the response time of http

http://forums.cacti.net/about11020.html

i find this link and installed the nrpe but i have this picture
can u please help me or give me another script that works!
thank you

[TheWitness]

Your Graph Template requires the 'LAST' consolidated function but your rrdfile does not include it? Is this a new graph? If so, you need to edit the RRA Specification and add the 'LAST' CF to it. Then delete the rrdfile in question and let Cacti re-create it.

TheWitness