Windows Vista (64-bit) Changed video memory, now doesn't start.

[CityArchitect]

Windows Vista (64-bit) Changed video memory, now doesn't start.
I installed guest additions 6.0.10
So recently I changed the memory from 96 mb to 256 mb. Then it fails to load giving me an error box

Failed to open a session for the virtual machine Vista.

Failed to load R0 module C:\Program Files\Oracle\VirtualBox/VMMR0.r0: Mismatch at 0x9db84 (fffff801408ddb84) of VMMR0.r0 loaded at fffff80140840000:

ntld: 4f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f

iprt: 0f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f (VERR_LDR_MISMATCH_NATIVE).

Failed to load VMMR0.r0 (VERR_LDR_MISMATCH_NATIVE).

Result Code: E_FAIL (0x80004005)
Component: ConsoleWrap
Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

Here's the log

00:00:02.597918 VirtualBox VM 6.0.10 r132072 win.amd64 (Jul 12 2019 09:34:54) release log
00:00:02.597925 Log opened 2019-08-11T15:36:21.081549400Z
00:00:02.597926 Build Type: release
00:00:02.597929 OS Product: Windows 10
00:00:02.597930 OS Release: 10.0.17763
00:00:02.597931 OS Service Pack:
00:00:02.642021 DMI Product Name: V241IC
00:00:02.645945 DMI Product Version: 0504
00:00:02.645957 Host RAM: 8079MB (7.8GB) total, 5561MB (5.4GB) available
00:00:02.645960 Executable: C:\Program Files\Oracle\VirtualBox\VirtualBoxVM.exe
00:00:02.645960 Process ID: 7344
00:00:02.645961 Package type: WINDOWS_64BITS_GENERIC
00:00:02.647127 Installed Extension Packs:
00:00:02.647155 None installed!
00:00:02.647729 Console: Machine state changed to 'Starting'
00:00:02.651050 Qt version: 5.6.2
00:00:02.654146 GUI: UIMediumEnumerator: Medium-enumeration finished!
00:00:02.733071 SUP: Loading failed for VMMR0.r0 (C:\Program Files\Oracle\VirtualBox\VMMR0.r0) rc=VERR_LDR_MISMATCH_NATIVE
00:00:02.733100 SUP: Mismatch at 0x9db84 (fffff8014053db84) of VMMR0.r0 loaded at fffff801404a0000:
00:00:02.733101 ntld: 4f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f
00:00:02.733101 iprt: 0f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f
00:00:02.733449 PDMLdr: pdmR3LoadR0U: pszName="VMMR0.r0" rc=VERR_LDR_MISMATCH_NATIVE szErr="Mismatch at 0x9db84 (fffff8014053db84) of VMMR0.r0 loaded at fffff801404a0000:
00:00:02.733451 ntld: 4f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f
00:00:02.733452 iprt: 0f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f"
00:00:02.733459 VMSetError: F:\tinderbox\win-6.0\src\VBox\VMM\VMMR3\PDMLdr.cpp(731) int __cdecl pdmR3LoadR0U(struct UVM *,const char *,const char *,const char *); rc=VERR_LDR_MISMATCH_NATIVE
00:00:02.733460 VMSetError: Failed to load R0 module C:\Program Files\Oracle\VirtualBox/VMMR0.r0: Mismatch at 0x9db84 (fffff8014053db84) of VMMR0.r0 loaded at fffff801404a0000:
00:00:02.733461 ntld: 4f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f
00:00:02.733462 iprt: 0f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f
00:00:02.733473 VMSetError: F:\tinderbox\win-6.0\src\VBox\VMM\VMMR3\VM.cpp(573) int __cdecl vmR3CreateU(struct UVM *,unsigned int,int (__cdecl *)(struct UVM *,struct VM *,void *),void *); rc=VERR_LDR_MISMATCH_NATIVE
00:00:02.733478 VMSetError: Failed to load VMMR0.r0
00:00:02.733679 ERROR [COM]: aRC=E_FAIL (0x80004005) aIID={872da645-4a9b-1727-bee2-5585105b9eed} aComponent={ConsoleWrap} aText={Failed to load R0 module C:\Program Files\Oracle\VirtualBox/VMMR0.r0: Mismatch at 0x9db84 (fffff8014053db84) of VMMR0.r0 loaded at fffff801404a0000:
00:00:02.733730 ntld: 4f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f
00:00:02.733731 iprt: 0f 85 b6 03 00 00 f6 83 20 91 00 00 01 0f 84 a9 03 00 00 f7 83 18 91 00 00 00 00 02 00 0f 85 99 03 00 00 0f b6 83 28 92 00 00 24 06 3c 06 0f 85 71 03 00 00 8b 83 38 91 00 00 48 0f ba e0 12 0f (VERR_LDR_MISMATCH_NATIVE).
00:00:02.733731 Failed to load VMMR0.r0 (VERR_LDR_MISMATCH_NATIVE)}, preserve=false aResultDetail=-616
00:00:02.733908 Console: Machine state changed to 'PoweredOff'
00:00:02.993633 Power up failed (vrc=VERR_LDR_MISMATCH_NATIVE, rc=E_FAIL (0X80004005))
00:00:03.494759 GUI: UIMachineViewNormal::resendSizeHint: Restoring guest size-hint for screen 0 to 1920x975
00:00:03.494853 ERROR [COM]: aRC=E_ACCESSDENIED (0x80070005) aIID={ab4164db-c13e-4dab-842d-61ee3f0c1e87} aComponent={DisplayWrap} aText={The console is not powered up}, preserve=false aResultDetail=0
00:00:03.495377 GUI: Aborting startup due to power up progress issue detected...

It says MISMATCH NATIVE?
access denied then turns off
is this my screen resolution problem?

[stefan.becker]

"I installed guest additions 6.0.0"

...

"00:00:02.597918 VirtualBox VM 6.0.10 r132072 win.amd64 (Jul 12 2019 09:34:54) release log

That is not the same Version.

[CityArchitect]

Sorry I corrected that now.