After a long search, I and a friend found out. This mod is responsible for lags and crashes and our servers won't restart then. This occurs when this intensive is used for a long time. Since we deleted SignArtis, our servers have been running more than smoothly.

Can you show your full plugin list? do you have any logs to contribute; oxide, signartist? No one else is complaing of this, it must be something on your end.

My Friend.. 

01 "Stack Size Controller" (4.1.1) by AnExiledDev (3.53s) - StackSizeController.cs

02 "Backpacks" (3.6.3) by LaserHydra (20.93s) - Backpacks.cs

03 "Admin Panel" (1.4.7) by nivex (0.10s) - AdminPanel.cs

04 "PlayerAdministration" (1.6.7) by ThibmoRozier (0.00s) - PlayerAdministration.cs

05 "Godmode" (4.2.10) by Wulf/lukespragg/Arainrr (0.42s) - Godmode.cs

06 "CupboardNoDecay" (1.2.0) by RFC1920 (62.04s) - CupboardNoDecay.cs

07 "TruePVE" (2.0.6) by nivex (62.69s) - TruePVE.cs

08 "Vanish" (1.6.6) by Whispers88 (0.05s) - Vanish.cs

09 "No Give Notices" (0.3.0) by Wulf (0.00s) - NoGiveNotices.cs

10 "Death Notes" (6.3.7) by LaserHydra (3.58s) - DeathNotes.cs

11 "Quick Sort" (1.6.0) by MON@H (0.22s) - QuickSort.cs

12 "NPC Drop Gun" (2.0.8) by 2CHEVSKII (0.39s) - NPCDropGun.cs

13 "Gathering Manager" (2.2.75) by Mughisi (0.38s) - GatherManager.cs

14 "Remover Tool" (4.3.31) by Reneb/Fuji/Arainrr (0.08s) - RemoverTool.cs

15 "TimeOfDay" (2.3.4) by FuJiCuRa (0.00s) - TimeOfDay.cs

16 "No Decay" (1.4.6) by 0x89A (1514.77s) - NoDecay.cs

17 "Vehicle Deployed Locks" (1.7.2) by WhiteThunder (0.13s) - VehicleDeployedLocks.cs

18 "Magic Panel" (1.0.8) by MJSU (0.19s) - MagicPanel.cs

19 "Magic Players Panel" (1.0.2) by MJSU (0.01s) - MagicPlayersPanel.cs

20 "Magic Clock Panel" (1.0.2) by MJSU (0.36s) - MagicClockPanel.cs

21 "Magic Server Time Panel" (1.0.5) by MJSU (0.03s) - MagicServerTimePanel.cs

And my: 01 "Backpacks" (3.7.2) by LaserHydra (10.19s) - Backpacks.cs
02 "Better Beds" (1.0.6) by Krungh Crow (0.58s) - BetterBeds.cs
03 "BoxLooters" (0.3.5) by 4seti / k1lly0u (18.79s) - BoxLooters.cs
04 "BuildingBlocker" (2.4.0) by Vlad-00003 (3.80s) - BuildingBlocker.cs
05 "Building Grades" (1.0.4) by Default/Arainrr (0.02s) - BuildingGrades.cs
06 "Chat Prefix" (1.2.1) by Gonzi (4.37s) - ChatPrefix.cs
07 "Chest Stacks" (1.4.5) by supreme (0.39s) - ChestStacks.cs
08 "Countries" (2.0.1) by Wulf (59.65s) - Countries.cs
09 "Craft Car Chassis" (1.2.2) by WhiteThunder (0.39s) - CraftChassis.cs
10 "Cupboard Limiter" (1.6.0) by Spiikesan (3.09s) - CupboardLimiter.cs
11 "CustomButtons" (2.0.5) by David (6.55s) - CustomButtons.cs
12 "Entity Owner" (3.4.1) by Calytic (0.02s) - EntityOwner.cs
13 "Everlight" (3.4.16) by Wulf/lukespragg/Arainrr (41.58s) - Everlight.cs
14 "Furnace Splitter" (2.3.3) by FastBurst (28.49s) - FurnaceSplitter.cs
15 "Gathering Manager" (2.2.75) by Mughisi (1.62s) - GatherManager.cs
16 "Godmode" (4.2.10) by Wulf/lukespragg/Arainrr (16.37s) - Godmode.cs
17 "GridPower" (1.0.4) by Nikedemos (12.11s) - GridPower.cs
18 "Heli Editor" (0.2.3) by KibbeWater (21.59s) - HeliEditor.cs
19 "Image Library" (2.0.60) by Absolut & K1lly0u (0.48s) - ImageLibrary.cs
20 "Inventory Viewer" (4.0.4) by Whispers88 (0.01s) - InventoryViewer.cs
21 "Magic Clock Panel" (1.0.2) by MJSU (1.66s) - MagicClockPanel.cs
22 "Magic Panel" (1.0.8) by MJSU (1.65s) - MagicPanel.cs
23 "Magic Players Panel" (1.0.2) by MJSU (0.02s) - MagicPlayersPanel.cs
24 "Magic Server Time Panel" (1.0.5) by MJSU (0.13s) - MagicServerTimePanel.cs
25 "Mini-Copter Options" (2.0.9) by Pho3niX90 (68.56s) - MiniCopterOptions.cs
26 "NightVision" (2.4.0) by Clearshot (2.73s) - NightVision.cs
27 "No Give Notices" (0.3.0) by Wulf (0.00s) - NoGiveNotices.cs
28 "No MLRS Mount" (1.0.4) by Lincoln (0.01s) - NoMLRSMount.cs
29 "Nudist Heli" (0.1.1) by Panduck (1.09s) - NudistHeli.cs
30 "PermissionsManager" (2.0.5) by Steenamaroo (1.60s) - PermissionsManager.cs
31 "PersonalFarm" (1.0.6) by bmgjet (193.37s) - PersonalFarm.cs
32 "PlayerAdministration" (1.6.7) by ThibmoRozier (0.57s) - PlayerAdministration.cs
33 "Remover Tool" (4.3.31) by Reneb/Fuji/Arainrr (0.27s) - RemoverTool.cs
34 "Scrap Heli Storage" (0.0.5) by yetzt (0.48s) - ScrapHeliStorage.cs
35 "Skins" (2.2.2) by misticos (3.33s) - Skins.cs
36 "SmoothRestarter" (3.1.1) by 2CHEVSKII (0.05s) - SmoothRestarter.cs
37 "Stack Size Controller" (4.1.1) by AnExiledDev (21.41s) - StackSizeController.cs
38 "TimeOfDay" (2.3.4) by FuJiCuRa (0.00s) - TimeOfDay.cs
39 "TPMarker" (1.0.0) by MikeHawke (0.01s) - TPMarker.cs
40 "TruePVE" (2.0.6) by nivex (404.86s) - TruePVE.cs
41 "Vanish" (1.6.6) by Whispers88 (0.27s) - Vanish.cs
42 "Vehicle Decay Protection" (1.6.0) by WhiteThunder (6.19s) - VehicleDecayProtection.cs
43 "Vehicle Deployed Locks" (1.7.2) by WhiteThunder (0.93s) - VehicleDeployedLocks.cs
44 "WaterBases" (1.0.4) by Nikedemos (5.42s) - WaterBases.cs
45 "WelcomePanel" (3.0.7) by David (55.90s) - WelcomePanel.cs
46 "Zone Manager" (3.0.23) by k1lly0u (161.77s) - ZoneManager.cs

since we removed SignArtis we haven´t had any more problems. sorry