Official SuiteCRM Outlook Plugin

SuiteCRM Outlook Add-In v3.0.18.0 in Outlook version 16.0.0.4266

I have connected succesfully to the CRM and been able to archive one e-mail.

I have selected the option "Sync meetings from Oulook to CRM" and the calendar in the CRM is not updated.
I have a log file of the Plugin. Here there is a relevant summary of it

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2019-03-11 14:42:16,905 | Background | INFO | LicenceValidationHelper.InterpretStatusCode: status code OK, returning True
2019-03-11 14:42:16,927 | Background | INFO | LicenceValidationHelper.Validate: returning True
2019-03-11 14:42:16,927 | Background | INFO | Licence verified...
2019-03-11 14:42:18,224 | Background | INFO | Authentication succeeded...
2019-03-11 14:42:18,224 | Background | INFO | Starting normal operations.
2019-03-11 14:42:18,331 | MS | INFO | AppointmentSyncing.LinkOutlookItems: Adding unknown item to queue:
    Outlook Id : 0000000070D380C651ADD243A6FFBDBBE27906A10700CC90983122B3DE4FAF14AFCD2FBC67AD00000070CF830000CC90983122B3DE4FAF14AFCD2FBC67AD00000074677E0000
    Global Id : 040000008200E00074C5B7101A82E0080000000000000000000000000000000000000000310000007643616C2D5569640100000037463730303939462D444534362D343846342D414532452D33434339373033383533393600
    CRM Id     :
    Subject     : 'Murielle impots'
    Sensitivity : olNormal
    Status     : olNonMeeting
    Reminder set: False
    Organiser : OPI - Juan J. LOPEZ VILLAREJO
    Outlook User: OPI - Juan J. LOPEZ VILLAREJO
    TxState     :
    Recipients :

2019-03-11 14:57:26,740 | 7 | INFO | Synchoniser.ShouldAddOrUpdateItemFromOutlookToCrm: Calls not added to CRM because synchronisation is not enabled.
2019-03-11 14:57:26,771 | 7 | WARN | Failed to find vCal-Uid in GlobalAppointmentId ' � � tŷ��    Y���         ����: A���}�Z' in appointment 'test 5'
2019-03-11 14:57:26,771 | 7 | INFO | AppointmentSyncing.AddItemFromOutlookToCrm, Not enabled:
    Outlook Id : 0000000070D380C651ADD243A6FFBDBBE27906A10700CC90983122B3DE4FAF14AFCD2FBC67AD00000070CF83000035D5BD48A4BDFF4E9CA61D9353DACD4701FA0F71100D0000
    Global Id : 040000008200E00074C5B7101A82E00800000000105907AA18D8D401000000000000000010000000931AE8E4D13A00419FB5D302057DE25A
    Subject     : 'test 5'
    Sensitivity : olNormal
    Status     : olNonMeeting
    Reminder set: False
    Organiser : OPI - Juan J. LOPEZ VILLAREJO
    Outlook User: OPI - Juan J. LOPEZ VILLAREJO
    TxState     : Pending
    Recipients :
        OPI - Juan J. LOPEZ VILLAREJO: juan.lopez-villarejo@opi.ch - (olResponseNone)

2019-03-11 14:57:26,787 | 7 | WARN | Failed to find vCal-Uid in GlobalAppointmentId ' � � tŷ��    Y���         ����: A���}�Z' in appointment 'test 5'
2019-03-11 14:57:26,803 | 7 | INFO | TransmitUpdateAction`2 (Calls    Outlook Id : 0000000070D380C651ADD243A6FFBDBBE27906A10700CC90983122B3DE4FAF14AFCD2FBC67AD00000070CF83000035D5BD48A4BDFF4E9CA61D9353DACD4701FA0F71100D0000
    CRM Id     :
    Subject     : 'test 5'
    Sensitivity : olNormal
    Status     : olNonMeeting
    Reminder set False
    State     : Pending
    Recipients:
        OPI - Juan J. LOPEZ VILLAREJO: juan.lopez-villarejo@opi.ch - (olResponseNone)
) completed: Synced.
2019-03-11 14:57:27,104 | Shutdown | INFO | RepeatingProcess.PrepareShutdownAll: process Daemon is stopped.
2019-03-11 14:57:27,636 | VSTA_Main | INFO | ThisAddIn_Quit: shutdown complete.