Mail crash when connected to Exchange server

Hi, I have been using my MacBook Air for 2 years and using Mail. Two days ago Mail crashes every time I am connect it to my business Exchange server.

Please find an extract of the error message below. Is anybody able to assist me? Your help is much appreciated.

Process: Mail [2184]

Path: /Applications/Mail.app/Contents/MacOS/Mail

Identifier: com.apple.mail

Version: 5.3 (1283)

Build Info: Mail-1283000000000000~1

Code Type: X86-64 (Native)

Parent Process: launchd [134]

Date/Time: 2013-08-19 11:28:21.600 +0800

OS Version: Mac OS X 10.7.5 (11G63)

Report Version: 9

Interval Since Last Report: 56644 sec

Crashes Since Last Report: 6

Per-App Interval Since Last Report: 32271 sec

Per-App Crashes Since Last Report: 6

Anonymous UUID: 22DB6590-3D19-467C-89DE-EE80CFAC0BC1

Crashed Thread: 5 Dispatch queue: com.apple.root.default-overcommit-priority

Exception Type: EXC_CRASH (SIGABRT)

Exception Codes: 0x0000000000000000, 0x0000000000000000

Application Specific Information:

objc[2184]: garbage collection is OFF

*** Terminating app due to uncaught exception 'MFSQLiteException', reason: 'adding an EWS folder id'

*** First throw call stack:

(

0 CoreFoundation 0x00007fff8c634f56 __exceptionPreprocess + 198

1 libobjc.A.dylib 0x00007fff993b3d5e objc_exception_throw + 43

2 Message 0x00007fff920d41dc __+[Library _addEWSProperty:value:forMailbox:errorString:]_block_invoke_1 + 460

3 Message 0x00007fff91f737af +[Library executeBlock:isWriter:useTransaction:isPrivileged:] + 1165

4 Message 0x00007fff920c9f03 +[Library _addEWSProperty:value:forMailbox:errorString:] + 98

5 Message 0x00007fff920c9d56 +[Library setEWSFolderId:forMailbox:] + 298

6 Message 0x00007fff9206ca88 -[EWSAccount _saveFolderId:forMailbox:] + 85

7 Message 0x00007fff9206cbf0 -[EWSAccount _setupMailboxUid:forFolderId:] + 50

8 Message 0x00007fff9206dc1a -[EWSAccount createMailboxFromEWSFolder:] + 587

9 Message 0x00007fff9209c2dc -[EWSSyncFolderHierarchyResponseOperation executeOperation] + 752

10 Message 0x00007fff9216782f -[MonitoredOperation main] + 228

11 Foundation 0x00007fff9482c6b4 -[__NSOperationInternal start] + 705

12 Foundation 0x00007fff9483f912 ____NSOQSchedule_block_invoke_2 + 124

13 libdispatch.dylib 0x00007fff8dfd6a82 _dispatch_call_block_and_release + 18

14 libdispatch.dylib 0x00007fff8dfd7961 _dispatch_worker_thread2 + 255

15 libsystem_c.dylib 0x00007fff994f23da _pthread_wqthread + 316

16 libsystem_c.dylib 0x00007fff994f3b85 start_wqthread + 13

)

terminate called throwing an exception

abort() called