I will optimize and fix modpack crash, minecraft server, skyrim mod, mod minecraft

A
alexjr28
A
alexjr28
Alex Jr
optimize and fix modpack crash, minecraft server, skyrim mod, mod minecraft
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optimize and fix modpack crash, minecraft server, skyrim mod, mod minecraft

About this gig

Here's how I work on a broken modpack. First I read the crash report and latest.log line by line. Then I narrow it down, even testing mods in halves, until the culprit shows itself. Then I fix it and explain what happened, so you're not stuck next time. I've done game development for five years, and debugging is my favorite part.


WHAT I SORT OUT:

  • Crash logs, "Exit code 1" & "crashed on startup" errors
  • Mixin errors, mod conflicts & dependency issues
  • Missing libraries
  • loader errors & Java 8/17/21/25 mismatches
  • CurseForge, Modrinth, Prism,
  • ATLauncher, MultiMC & FTB problems
  • Out of memory, GC overhead & ticking entity/block errors
  • World corruption
  • chunk errors & world load failures
  • Recipe, loot table, tag, texture, model, shader & sound bugs
  • GUI & keybind conflicts, Iris/OptiFine/Sodium issues
  • Client/server mismatch & "mod rejection" on join
  • Modpack rebuilds, folder cleanup, updates, rollbacks & migration
  • Themed survival,
  • RPG & tech modpacks from scratch
  • Mod compatibility & full-playthrough testing
  • minecraft crash log
  • modpack not launching
  • minecraft exit code 1
  • mixin error
  • java version fix
  • and many more


Message me your crash log and mod list before you order.

  • Platform type

    • PC

  • Customization type

    • Building creation
    • Environment creation
    • Map creation
    • Mod creation
    • Modding

  • Plugins

    • Analytics
    • Animation
    • Chat
    • Localization
    • Other

  • Game type

    • 3D

  • Genre

    • Action
    • Adventure
    • Educational
    • Fighting
    • Other

  • Game name

    • Minecraft

Get to know Alex Jr

Alex Jr

From crash log to custom build

  • FromUnited Kingdom
  • Member sinceMay 2026
  • Avg. response time1 hour

  • Languages

    English
Minecraft problems usually come in three kinds: something's broken, something's slow, or something doesn't exist yet. I work on all three. I fix crashing modpacks, tune lag and FPS, code custom mods, datapacks and plugins, set up servers, and build spawns and maps. I got here through five years of game development, and 3+ years of gameplay experience, and I'm done with an engineering degree. I like explaining what went wrong in plain words, so you know what changed. Tell me what's going on and let's sort it out.

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