Everytime i start logic pro x it searches for plugins, is it correct?

No.

Have you installed Novation's Automap?

Make sure you have the 64bit friendly plugin option checked in Automap's preferences...

If that doesn't help you have probably wrapped some plugins in Automap that don't like to be wrapped

For example... The ones beginning with AU such as AUNetReceive and AUAudioFilePlayer etc... typically cause Automap issues so make sure all those plugins beginning with AU are unchecked in Automap's prefs too..

If that doesn't work then you are going to dig around and find out which other plugins are not working well with Automap by unchecking each one seperately until you find the culprit...

Note: This is a known Automap issue and not an LPX one...