Permission and file sharing issues after updating to High Sierra 10.13.4

I am in an office of three people who all purchased Mac Pros last year. We are networked and realized after updating to High Sierra 10.13.4 a week ago that they cannot find my machine to share files. I can see them, but they cannot see me. Also, if I want to change file names or update files in my own public file, I have to enter my password or save to the desktop and copy back into my files. I see that others have this issue but I haven't seen a remedy. I followed the advice from another thread to run an EtreCheck and the report is below. Can you help fix my permission issues?

EtreCheck version: 4.2.1 (4C020)

Report generated: 2018-04-26 09:49:48

Download EtreCheck from https://etrecheck.com

Runtime: 3:09

Performance: Good

Problem: Other problem

Description:

Permission and file sharing issues after updating to High Sierra 10.13.4

Major Issues:

Anything that appears on this list needs immediate attention.

Time Machine backup out-of-date - The last Time Machine backup is over 10 days old.

Kernel panics - This system has experienced kernel panics. This could be a sign of hardware failure.

Minor Issues:

These issues do not need immediate attention but they may indicate future problems.

Apps crashing - There have been numerous app crashes.

Apps with heavy CPU usage - There have been numerous cases of apps with heavy CPU usage.

Small backup drive - Time Machine backup drive is too small.

Unsigned files - There is unsigned software installed. They appear to be legitimate but should be reviewed.

32-bit Apps - This machine has 32-bits apps that may have problems in the future.

Hardware Information:

Mac Pro (Late 2013)

Mac Pro Model: MacPro6,1

1 3.5 GHz 6-Core Intel Xeon E5 (Xeon(R)) CPU: 6-core

32 GB RAM Upgradeable

DIMM1 - 8 GB DDR3 ECC 1866 ok

DIMM2 - 8 GB DDR3 ECC 1866 ok

DIMM3 - 8 GB DDR3 ECC 1866 ok

DIMM4 - 8 GB DDR3 ECC 1866 ok

Video Information:

AMD FirePro D300 - VRAM: 2048 MB

AMD FirePro D300 - VRAM: 2048 MB

Cinema 1680 x 1050

Cinema Display 1680 x 1050

Drives:

disk0 - APPLE SSD SM1024G 1.00 TB (Solid State - TRIM: Yes)

Internal PCI 5.0 GT/s x4 Serial ATA

disk0s1 - EFI (MS-DOS FAT32) [EFI] 210 MB

disk0s2 () 1.00 TB

disk1s1 - Macintosh HD (APFS) 1.00 TB (922.45 GB used)

disk1s2 - Preboot (APFS) [APFS Preboot] 1.00 TB (20 MB used)

disk1s3 - Recovery (APFS) [Recovery] 1.00 TB (518 MB used)

disk1s4 - VM (APFS) [APFS VM] 1.00 TB (3.22 GB used)

disk2 - Western Digital My Passport 0748 1.00 TB

External USB 5 Gbit/s

disk2s1 - EFI (MS-DOS FAT32) [EFI] 210 MB

disk2s2 - L*****U (Journaled HFS+) 999.83 GB

Mounted Volumes:

disk1s1 - Macintosh HD 1.00 TB (73.94 GB free)

APFS

Mount point: /

disk1s4 - VM [APFS VM] 1.00 TB (73.94 GB free)

APFS

Mount point: /private/var/vm

disk2s2 - L*****U 999.83 GB (98.66 GB free)

Journaled HFS+

Mount point: /Volumes/L*****U

Network:

Interface en0: Ethernet 1

One IPv4 address

Interface en1: Ethernet 2

Interface en10: iPhone

One IPv4 address

Interface en2: Wi-Fi

Interface en9: Bluetooth PAN

Interface bridge0: Thunderbolt Bridge

System Software:

macOS High Sierra 10.13.4 (17E199)

Time since boot: About a day

System Load: 3.16 (1 min ago) 2.64 (5 min ago) 2.41 (15 min ago)

Security:

Unsigned Files:

Launchd: /Library/LaunchDaemons/com.microsoft.office.licensing.helper.plist

Executable: /Library/PrivilegedHelperTools/com.microsoft.office.licensing.helper

Details: Exact match found in the whitelist - probably OK

Launchd: /Library/LaunchDaemons/com.prosoftnet.idwebdaemon.plist

Executable: /Library/Application Support/IDriveforMac/IDriveHelperTools/IDWebManagement.app/Contents/MacOS/IDWeb Management

Details: Exact match found in the whitelist - probably OK

32-bit Applications:

43 32-bit apps

Kernel Extensions:

/Library/Extensions

[Loaded] TrackballWorks.kext (Kensington Computer Products Group, 1.3.0 - SDK 10.8)

System Launch Agents:

System Launch Daemons:

Launch Agents:

Launch Daemons:

User Launch Agents:

User Login Items:

AdobeResourceSynchronizer Application (Adobe Systems, Inc.

(/Applications/Adobe Acrobat DC/Adobe Acrobat.app/Contents/Helpers/AdobeResourceSynchronizer.app)

IDriveMonitor Application (IDrive Incorporated

(/Library/Application Support/IDriveforMac/IDriveHelperTools/IDriveMonitor.app)

iTunesHelper Application (Apple - installed 2018-03-30)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

TrackballWorksHelper Application (Kensington Computer Products Group

(/Library/PreferencePanes/TrackballWorks.prefPane/Contents/Resources/TrackballW orksHelper.app)

Box Sync Application (Box, Inc.

(/Applications/Box Sync.app)

Internet Plug-ins:

AdobeAAMDetect: 3.0.0.0 (installed 2018-02-21)

FlashPlayer-10.6: 29.0.0.140 (installed 2018-04-10)

QuickTime Plugin: 7.7.3 (installed 2018-03-27)

AdobePDFViewerNPAPI: 17.012.20098 (installed 2018-04-03)

AdobePDFViewer: 18.011.20038 (installed 2018-04-03)

Flash Player: 29.0.0.140 (installed 2018-04-10)

SharePointBrowserPlugin: 14.7.7 (installed 2017-10-23)

3rd Party Preference Panes:

Flash Player (installed 2018-03-26)

TrackballWorks (installed 2016-04-25)

Time Machine:

Skip System Files: No

Mobile backups:

Auto backup: Yes

Volumes being backed up:

Macintosh HD: Disk size: 1.00 TB - Disk used: 926.41 GB

Destinations:

L*****U [Local] (Last used)

Total size: 999.83 GB

Total number of backups: 1

Oldest backup: 2018-04-13 08:33:14

Last backup: 2018-04-13 08:33:14

Top Processes by CPU:

Top Processes by Memory:

Top Processes by Network Use:

Top Processes by Energy Use:

Virtual Memory Information:

Diagnostics Information (past 7 days):

2018-04-25 18:32:52 Box Sync.app CPU (11 times)

2018-04-24 16:41:00 Last Shutdown Cause: 3 - Hard shutdown (once)

2018-04-24 10:50:26 cloudd Crash (7 times)

2018-04-16 08:21:25 Kernel Panic (2 times)

End of report