Resolve 15.01 crash on loading on MBP

I have been working on Resolve 15.01 for a couple of weeks and have just had a serious crash on opening the software. It does not even display the first load page, but crashes giving me the error page, the first bit of which is copied below. I have tried uninstalling, reinstalling, and then when that didn't work, tried installing earlier versions of 12.5 & 14 to similar result.

Any help would be appreciated.
Many thanks
Lloyd

Process: Resolve [1388]
Path: /Applications/DaVinci Resolve/DaVinci Resolve.app/Contents/MacOS/Resolve
Identifier: com.blackmagic-design.DaVinciResolve
Version: 15.0.1 (15.0.1003)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Resolve [1388]
User ID: 502

Date/Time: 2018-09-22 12:40:22.062 +0200
OS Version: Mac OS X 10.13.6 (17G65)
Report Version: 12
Bridge OS Version: 3.0 (14Y664)
Anonymous UUID: 8DD25E07-6171-BD25-1EA6-B7B2ECAD7E44

Sleep/Wake UUID: 6734410B-D77B-4BCB-B815-C9BEFA3DCB0F

Time Awake Since Boot: 180 seconds
Time Since Wake: 17 seconds

System Integrity Protection: enabled

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

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [0]

VM Regions Near 0:
-->
__TEXT 0000000100000000-0000000117413000 [372.1M] r-x/rwx SM=COW /Applications/DaVinci Resolve/DaVinci Resolve.app/Contents/MacOS/Resolve

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.blackmagic-design.DaVinciResolve 0x0000000100016e1f 0x100000000 + 93727
1 com.blackmagic-design.DaVinciResolve 0x0000000100015fce 0x100000000 + 90062
2 com.blackmagic-design.DaVinciResolve 0x0000000100015828 0x100000000 + 88104
3 com.blackmagic-design.DaVinciResolve 0x00000001040343f2 0x100000000 + 67322866
4 com.blackmagic-design.DaVinciResolve 0x0000000104027a16 0x100000000 + 67271190
5 com.blackmagic-design.DaVinciResolve 0x0000000100993764 0x100000000 + 10041188
6 com.blackmagic-design.DaVinciResolve 0x0000000100994841 0x100000000 + 10045505
7 com.blackmagic-design.DaVinciResolve 0x0000000100f63228 0x100000000 + 16134696
8 com.blackmagic-design.DaVinciResolve 0x0000000100914dfb 0x100000000 + 9522683
9 com.blackmagic-design.DaVinciResolve 0x000000010002deea 0x100000000 + 188138
10 com.blackmagic-design.DaVinciResolve 0x000000010002f10c 0x100000000 + 192780
11 com.blackmagic-design.DaVinciResolve 0x0000000100052bb5 0x100000000 + 338869
12 libdyld.dylib 0x00007fff7682b015 start + 1

Thread 1:
0 libsystem_kernel.dylib 0x00007fff7697c28a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff76b43009 _pthread_wqthread + 1035
2 libsystem_pthread.dylib 0x00007fff76b42be9 start_wqthread + 13

Thread 2:
0 libsystem_kernel.dylib 0x00007fff7697c28a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff76b43009 _pthread_wqthread + 1035
2 libsystem_pthread.dylib 0x00007fff76b42be9 start_wqthread + 13

Thread 3:
0 libsystem_pthread.dylib 0x00007fff76b42bdc start_wqthread + 0
1 ??? 0x0000400000000000 0 + 70368744177664

Thread 4:
0 libsystem_kernel.dylib 0x00007fff76972246 semaphore_wait_trap + 10
1 com.blackmagic-design.DaVinciResolve 0x0000000103e1452f 0x100000000 + 65094959
2 com.blackmagic-design.DaVinciResolve 0x00000001044a3378 0x100000000 + 71971704
3 libsystem_pthread.dylib 0x00007fff76b43661 _pthread_body + 340
4 libsystem_pthread.dylib 0x00007fff76b4350d _pthread_start + 377
5 libsystem_pthread.dylib 0x00007fff76b42bf9 thread_start + 13

Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x0000000000000001 rbx: 0x0000000000000000 rcx: 0x0000000000000000 rdx: 0x0000000000001b28
rdi: 0x00000001265c1b00 rsi: 0x0000000000000008 rbp: 0x00007ffeefbfef30 rsp: 0x00007ffeefbfecd0
r8: 0x0000000000000000 r9: 0x000000000000000a r10: 0x000000000000000a r11: 0x00007ffdd92f5618
r12: 0x00000001337cfa28 r13: 0x00000001337cfa70 r14: 0x00000001337cf600 r15: 0x00000001337cf680
rip: 0x0000000100016e1f rfl: 0x0000000000010246 cr2: 0x0000000000000000

Logical CPU: 2
Error Code: 0x00000004
Trap Number: 14

Same Probleme here!!!!