I purchased LR 6 as a download for my iMac ... during startup a get an error message regarding access ... the dialog box says send problem to adobe?

Process:               Adobe Lightroom [881]

Path:                  /Applications/Adobe Lightroom/Adobe Lightroom.app/Contents/MacOS/Adobe Lightroom

Identifier:            com.adobe.Lightroom6

Version:               Adobe Lightroom [1014445] (6.0)

Code Type:             X86-64 (Native)

Parent Process:        ??? [1]

Responsible:           Adobe Lightroom [881]

User ID:               501

Date/Time:             2015-04-28 10:47:16.180 -0400

OS Version:            Mac OS X 10.10.3 (14D136)

Report Version:        11

Anonymous UUID:        5C407E12-1622-A1E9-92A2-CEFE86509B47

Sleep/Wake UUID:       EE35AF9D-CA7D-41B4-8CD8-3382207B653A

Time Awake Since Boot: 2900 seconds

Time Since Wake:       390 seconds

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_ACCESS (SIGSEGV)

Exception Codes:       KERN_INVALID_ADDRESS at 0x0000000000000348