[Thin blue swine bbq]

can anyone help me please? I have a Laredo 292rl and it has a triple slide glass shower door, one panel will open but the other 2 are stuck together and wont come apart. they both are like they are locked together, they slide but wont come apart... it may be off track but I have no idea how or where to start. I also have electric rear jacks that wont drop down. I can hear the motor running but it wont engage the gear to drop them down. any help or advice would be greatly appreciated. thank you