i get this error in the home page

Fatal error: Call to undefined function BuildRoute() in /home/jokira24/public_html/components/com_sef/joomsef.php on line 244


can anyone help me with this error?

Hello,
what Joomla version do you use and what is the JoomSEF version you have installed?

joomsef 3.6.2 and joomla 1.5.15

i think i found the problem but i don't know how to solve it

i disabled all models to find if the problem comes from specific model and the answer was "yoologin" when i disable this model the site works fine

how to solve this problem ?

finally solved the problem but i still don't understand

it turns that yoologin was set to redirect the user after he logs in to the home page

i tried to change this redirect to another page and not the home and it is working fine

but i still don't get it could anyone explains this problem to me ?