Installs and then uninstalls

hello , i have a mac that installs Sophos Central fine and then starts updating (i know this as the sheild starts showing the arrow sign). When its updating looking at the logs as below it starts uninstalling.

i dont understand why this is any ideas?

Thanks

  Install Helper[15094]: [InstallHelper.m:145] SophosAutoUpdate: Installation Deployer
 Sophos Installer[15096]: [SMEInstallController.m:237] Installing saas version 9.6.3
 Sophos Installer[15096]: [SMEInstallController.m:857] Upgrading the "saas" product
 Sophos Installer[15096]: [SMEAggregateInstallStrategy.m:93] "installer.prepare.stopProcesses" success: YES
 Sophos Installer[15096]: [SMERemoveFilesStrategy.m:110] Removing files belonging to components: [prepare]
 Sophos Installer[15096]: [SMEAggregateInstallStrategy.m:93] "installer.prepare.removeComponents" success: YES
Sophos Installer[15096]: [SMEAggregateInstallStrategy.m:93] "installer.prepare.removeKeychains" success: YES
 Sophos Installer[15096]: [SMEBuildInstallPlanStrategy.m:83] Features unknown to the installer: [SDU]
 Sophos Installer[15098]: [SMEInstallController.m:249] Starting receipt service for saas version 9.6.3
 Sophos Installer[15098]: [SMEValidateStrategy.m:108] Failed to validate components
 Sophos Installer[15098]: [SMEReceiptServiceStrategy.m:192] Fix plan is:
             components: [savi]
                daemons: (null)
        managed daemons: (null)
                 agents: (null)
                  users: (null)
                 groups: (null)
 Sophos Installer[15096]: [SMEBuildInstallPlanStrategy.m:296] Install plan (__Default,CORE):
             components: [savi, uis, scand, evmon, cryptoguard, gui, devctld, cleand, devctl-kext-lib, ssvr, data, heartbeatd, webd, sxld, encryption, sfm-kext-lib, oas-kext-lib, webd-kext-lib]
                daemons: []
        managed daemons: [com.sophos.cryptoguard, com.sophos.notification, com.sophos.sxld, com.sophos.heartbeatd, com.sophos.devicecontrol, com.sophos.cleand, com.sophos.enc.adapter.central, com.sophos.webd, com.sophos.enc.encryptiond, com.sophos.evmon, com.sophos.scan]
                 agents: [com.sophos.uiserver, com.sophos.enc.encryptionagent]
                  users: [{RequiredBy : receiptOnly, Name : _sophos}, {RequiredBy : receiptOnly, Name : _sophosencryption}]
                 groups: [{RequiredBy : receiptOnly, Name : _sophos}, {RequiredBy : receiptOnly, Name : _sophosencryption}]
 Sophos Installer[15096]: [SMEAggregateInstallStrategy.m:93] "installer.localPayload.buildPlan" success: YES
 Sophos Installer[15096]: [SMEAggregateInstallStrategy.m:93] "installer.localPayload.cacheManifestComponents" success: YES
Sophos Installer[15098]: [SMEProcessStopStrategy.m:232] Stopping managed daemons: [com.sophos.notification, com.sophos.sxld, com.sophos.scan, com.sophos.heartbeatd, com.sophos.devicecontrol, com.sophos.cleand, com.sophos.enc.adapter.central, com.sophos.webd, com.sophos.enc.encryptiond, com.sophos.evmon, com.sophos.cryptoguard]
 Sophos Installer[15098]: [SMEProcessStopStrategy.m:268] Stopping agents: [com.sophos.uiserver, com.sophos.enc.encryptionagent]
Sophos Installer[15098]: [SMEProcessStopStrategy.m:297] Stopping applications: []
Sophos Installer[15098]: [SMEAggregateInstallStrategy.m:93] "receiptService.removeComponents.stopProcesses" success: YES
 Sophos Installer[15098]: [SMERemoveFilesStrategy.m:110] Removing files belonging to components: [savi, uis, scand, evmon, cryptoguard, gui, devctl-kext-lib, cleand, webd-kext-lib, ssvr, data, heartbeatd, webd, sxld, encryption, sfm-kext-lib, oas-kext-lib, devctld]
 Sophos Installer[15098]: [SMEAggregateInstallStrategy.m:93] "receiptService.removeComponents.removeFiles" success: YES
Sophos Installer[15098]: [SMERemoveUserStrategy.m:106] Removing users: [_sophos, _sophosencryption] and groups: [_sophos, _sophosencryption]
Sophos Installer[15098]: [SMEAggregateInstallStrategy.m:93] "receiptService.remove