What version of InDesign? What model Mac?
The old Macbook Pro and Indesign CS 5.5
What is the EXACT error message?
Well, we do have a few Dutch speakers that hang around here, but I’m not one of them.
Ok I'll give it a try: "Ask the developer if indesign works with this version of Mc OSX. It is possible you need to re-install again. Make sure that all available programme and OSX updates are available."
And the Details button?
Process: Adobe InDesign CS5.5  Path: /Applications/Adobe InDesign CS5.5/Adobe InDesign CS5.5.app/Contents/MacOS/Adobe InDesign CS5.5 Identifier: com.adobe.InDesign Version: ??? (???) Code Type: X86 (Native)
Parent Process: launchd 
Date/Time: 2012-01-23 18:50:16.385 +0100 OS Version: Mac OS X 10.6.8 (10K549)
Report Version: 6
Interval Since Last Report: 55047 sec Crashes Since Last Report: 5
Per-App Crashes Since Last Report: 5
Anonymous UUID: B1DF8E79-5E9D-4A96-AE7A-CD01C84AA96B
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0
Dyld Error Message:
Library not loaded: @executable_path/InDesignModel.framework/Versions/A/InDesignModel
Referenced from: /Applications/Adobe InDesign CS5.5/Adobe InDesign CS5.5.app/Contents/MacOS/Adobe InDesign CS5.5
Reason: image not found
0x8fe00000 - 0x8fe4162b dyld 132.1 (???) <749D24EE-54BD-D74B-D305-C13F5E6C95D8> /usr/lib/dyld
Model: MacBookPro3,1, BootROM MBP31.0070.B07, 2 processors, Intel Core 2 Duo, 2.2 GHz, 4 GB, SMC 1.16f11
Graphics: NVIDIA GeForce 8600M GT, GeForce 8600M GT, PCIe, 128 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x87), Atheros 5416: 184.108.40.206
Bluetooth: Version 2.4.5f3, 2 service, 12 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
PCI Card: pci168c,24, sppci_othernetwork, PCI Slot 5
Serial ATA Device: FUJITSU MHY2120BH, 111,79 GB
Parallel ATA Device: HL-DT-ST DVDRW GSA-S10N
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8502, 0xfd400000 / 2
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x021b, 0x5d200000 / 3
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0x5d100000 / 2
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8205, 0x1a100000 / 2
Well, at least it's in English — sort of.
This error mean that this file (inside the InDesign.app package -- you could rightclick it in the FInder) is missing:
Adobe InDesign CS5.5.app/Contents/MacOS/InDesignModel.framework/Versions/A/InDesignModel
Which implies the install went horribly wrong. You already tried the reinstall, but apparently it didn't work. So...uninstall, run the Adobe Cleaner Tool, and then reinstall. If that doesn't work, I guess we'll have to look at your installation logs...
Ok tx! Where can I find the Adobe Cleaner? And how do I uninstall?