I can't loggin in fresh v.5.0 install

When i load http://myserver/projeqtor a see this message in browser:
ERROR : An error occurred on 2015-06-17 at 17:05:32
Is a fresh install where database was correctly crceated.
I don't know what's happen.

Thanks!

This is the message in the log file:

2015-06-17 22:50:00.984 ===== TRACE ===== NEW CONNECTED USER 'guest'
2015-06-17 22:50:01.140 ***** ERROR ***** ERROR *****
2015-06-17 22:50:01.141 ***** ERROR ***** on file 'D:\xampplite\htdocs\projeqtor\tool\projeqtor.php' at line (125)
2015-06-17 22:50:01.142 ***** ERROR ***** cause = main() [<a href='function.main'>function.main</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;User&quot; of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition
2015-06-17 22:50:01.218 ***** ERROR ***** ERROR *****
2015-06-17 22:50:01.219 ***** ERROR ***** on file 'D:\xampplite\htdocs\projeqtor\tool\projeqtor.php' at line (125)
2015-06-17 22:50:01.219 ***** ERROR ***** cause = main() [<a href='function.main'>function.main</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;User&quot; of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition
2015-06-17 22:50:01.296 ***** ERROR ***** ERROR *****
2015-06-17 22:50:01.297 ***** ERROR ***** on file 'D:\xampplite\htdocs\projeqtor\tool\projeqtor.php' at line (125)
2015-06-17 22:50:01.298 ***** ERROR ***** cause = main() [<a href='function.main'>function.main</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;User&quot; of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition

Thanks!

Hi
I retarted server (Mysq, Apache) and the problem persist.

In log a see this:
2015-06-18 20:36:16.833 ===== TRACE ===== NEW CONNECTED USER 'admin'
2015-06-18 20:36:17.265 ***** ERROR ***** ERROR *****
2015-06-18 20:36:17.266 ***** ERROR ***** on file 'D:\xampplite\htdocs\projeqtor\tool\projeqtor.php' at line (125)
2015-06-18 20:36:17.266 ***** ERROR ***** cause = main() [<a href='function.main'>function.main</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;User&quot; of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition

In browser i see this:
ERROR : An error occurred on 2015-06-18 at 20:36:17

Hi babynus

Thanks again but i still have the problem.
I deleted sess* files and restar apache and it's not working. I have the same errors:
In log:
2015-06-19 07:55:25.697 ===== TRACE ===== NEW CONNECTED USER 'admin'
2015-06-19 07:55:25.921 ***** ERROR ***** ERROR *****
2015-06-19 07:55:25.922 ***** ERROR ***** on file 'D:\xampplite\htdocs\projeqtor\tool\projeqtor.php' at line (125)
2015-06-19 07:55:25.922 ***** ERROR ***** cause = main() [<a href='function.main'>function.main</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;User&quot; of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition
2015-06-19 07:55:26.000 ***** ERROR ***** ERROR *****
2015-06-19 07:55:26.000 ***** ERROR ***** on file 'D:\xampplite\htdocs\projeqtor\tool\projeqtor.php' at line (125)
2015-06-19 07:55:26.001 ***** ERROR ***** cause = main() [<a href='function.main'>function.main</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;User&quot; of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition
2015-06-19 07:55:26.078 ***** ERROR ***** ERROR *****
2015-06-19 07:55:26.096 ***** ERROR ***** on file 'D:\xampplite\htdocs\projeqtor\tool\projeqtor.php' at line (125)
2015-06-19 07:55:26.096 ***** ERROR ***** cause = main() [<a href='function.main'>function.main</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition &quot;User&quot; of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition

And in browser:
ERROR : An error occurred on 2015-06-19 at 07:55:26

Do you have another idea?

Thanks again.