Acrobat X (disk CS5.5) quits on load - iMac (2017) Sierra 10.12.16 (16G29) Other applications from CS5.5 disk loading no problem - Illustrator & Photoshop CS5.1. 'Acrobat quit unexpectedly' dialogue after 10 seconds.

Process: AdobeAcrobat [1216]
Path: /Applications/Adobe Acrobat X Pro/Adobe Acrobat Pro.app/Contents/MacOS/AdobeAcrobat
Identifier: com.adobe.Acrobat.Pro
Version: 10.0.0 (10.0.0)
Code Type: X86 (Native)
Parent Process: ??? [1]
Responsible: AdobeAcrobat [1216]
User ID: 501

Date/Time: 2017-10-13 22:35:24.099 +0100
OS Version: Mac OS X 10.12.6 (16G29)
Report Version: 12
Anonymous UUID: DFFC8205-FD90-7E96-811E-B09F754B14DA

Time Awake Since Boot: 2100 seconds

System Integrity Protection: enabled

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

Exception Type: EXCBADINSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Exception Note: EXCCORPSENOTIFY

Termination Signal: Illegal instruction: 4
Termination Reason: Namespace SIGNAL, Code 0x4
Terminating Process: exc handler [0]

Application Specific Information:
BUG IN CLIENT OF LIBPLATFORM: Failed to allocate memory for string

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystemplatform.dylib 0xa17432c1 _simplesalloc + 122
1 libsystemmalloc.dylib 0xa16ca103 szoneerror + 29
2 libsystemmalloc.dylib 0xa16bd7b5 allocatepages + 302
3 libsystemmalloc.dylib 0xa16c2693 largemalloc + 471
4 libsystemmalloc.dylib 0xa16bde37 szonemallocshouldclear + 372
5 libsystemmalloc.dylib 0xa16bdcbe szonemalloc + 24
6 libsystemmalloc.dylib 0xa16cc978 defaultzonemalloc + 54
7 libsystemmalloc.dylib 0xa16bdc4b malloczonemalloc + 116
8 libsystem_malloc.dylib 0xa16bcf9d malloc + 29
9 libFontParser.dylib 0x92df1c3c TFileDataReference::MapOrRead(char const, int) + 124
10 libFontParser.dylib 0x92dc4a8f TFileDataReference::TFileDataReference(char const, bool) + 243
11 libFontParser.dylib 0x92dc48a1 TResourceForkFileReference::TResourceForkFileReference(char const, bool) + 41
12 libFontParser.dylib 0x92dc4801 TResourceForkSurrogate::TResourceForkSurrogate(char const, bool) + 111
13 libFontParser.dylib 0x92dc4782 TResourceForkSurrogate::TResourceForkSurrogate(char const, bool) + 32
14 libFontParser.dylib 0x92e0f0b1 TFont::CreateFontEntities(char const, bool, TSimpleArray<TFont*>&, bool&, short, char const, bool) + 807
15 libFontParser.dylib 0x92dc0ef7 TFont::CreateFontEntitiesForFile(char const, bool, TSimpleArray<TFont*>&, bool, short, char const*) + 207
16 libFontParser.dylib 0x92dc084b FPFontCreateFontsWithPath + 214