Hi I had a website which was ranked very well on google . however when I changed the script , so the structure url changed . and I had a fall on traffic . I moved to Vivvo CMS script . I checked the optimisation center on the google webmaster tools and I found that I have 26.000 pages with "double Meta tags description" and also "double title tags" , so they suggest me to remove it . It count like each article has 2 urls and beend dublicated , but this is the same article as the 3nd one is only a permalink . How to resolve such problem please . Thank you