Safari crashes, won't open

I can't get Safari to work as it keeps crashing. I haven't installed any plugins or extensions. I reinstalled macOS Sierra. Safari works when I login as a guest.

Process:               Safari [1052]
Path:                  /Applications/Safari.app/Contents/MacOS/Safari
Identifier:            com.apple.Safari
Version:               10.0.2 (12602.3.12.0.1)
Build Info:            WebBrowser-7602003012000001~2
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Safari [1052]
User ID:               503


Date/Time:             2017-01-02 18:02:55.778 +0100
OS Version:            Mac OS X 10.12.2 (16C68)
Report Version:        12
Anonymous UUID:        4CA7DADB-C0A9-459F-2B8A-A65AD0CF65AB




Time Awake Since Boot: 200 seconds


System Integrity Protection: disabled


Crashed Thread:        13  Dispatch queue: com.apple.Safari.ParsecDAAPPurchaseHistoryControllerOwnedItemIdentifiersAccessQueue


Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY


Application Specific Information:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString itemIdentifier]: unrecognized selector sent to instance 0x61800062d280'
terminating with uncaught exception of type NSException
abort() called


Application Specific Backtrace 1:
0   CoreFoundation                      0x00007fff827c5e7b __exceptionPreprocess + 171
1   libobjc.A.dylib                     0x00007fff973b0cad objc_exception_throw + 48
2   CoreFoundation                      0x00007fff82847cb4 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3   CoreFoundation                      0x00007fff82737fb5 ___forwarding___ + 1061
4   CoreFoundation                      0x00007fff82737b08 _CF_forwarding_prep_0 + 120
5   Safari                              0x00007fff93629292 __68-[ParsecDAAPPurchaseHistoryController _populateOwnedItemIdentifiers]_block_invoke + 491
6   libdispatch.dylib                   0x00007fff97c66ef7 _dispatch_call_block_and_release + 12
7   libdispatch.dylib                   0x00007fff97c5e0b8 _dispatch_client_callout + 8
8   libdispatch.dylib                   0x00007fff97c74ae5 _dispatch_queue_serial_drain + 896
9   libdispatch.dylib                   0x00007fff97c66cd9 _dispatch_queue_invoke + 1046
10  libdispatch.dylib                   0x00007fff97c5fe70 _dispatch_root_queue_drain + 476
11  libdispatch.dylib                   0x00007fff97c5fc47 _dispatch_worker_thread3 + 99
12  libsystem_pthread.dylib             0x00007fff97eab712 _pthread_wqthread + 1299libsystem_pthread.dylib             0x00007fff97eab1ed start_wqthread +