I will create fix optimize modpack, forge fabric conversion, mod minecraft developer

J
jah_diel
J
jah_diel
Israel j
4.3
4.3

About this gig

Modpack won't launch? Mod broke after an update? Game crashes at the exact same spot every time? I read the logs, find the broken piece, and fix it properly. Five years in game development means I'm comfortable digging through stack traces and debugging.


WHAT I FIX:

  • Crash logs, latest.log & Exit code 1 startup errors
  • Mixin errors, mod conflicts
  • missing registry entries
  • Java version mismatch (8, 17, 21, 25)
  • CurseForge, Modrinth, Prism, ATLauncher, MultiMC & FTB launchers
  • Out of memory, GC overhead
  • world corruption & chunk errors
  • Recipe, loot table, tag, texture
  • shader, sound & GUI bugs
  • Binary-search mod isolation
  • pack rebuilds & folder cleanup
  • Modpack updates, downgrades
  • launcher migration
  • Client/server mismatch & join errors
  • Port mods to newer versions or backport old ones (1.7.10, 1.12.2, 1.16.5)
  • Forge, Fabric, Quilt & NeoForge porting
  • Mappings, deprecated APIs & Gradle fixes
  • Compat patches
  • abandoned mods & merged mods
  • and many more...


Message me your crash log and mod list before ordering.

Get to know Israel j

Israel j

I fix, build and set up your Minecraft world

4.8(3)
  • FromNigeria
  • Member sinceOct 2025
  • Avg. response time1 hour
  • Last delivery3 months
  • Languages

    English, French, Spanish, German
Here's the short version of what I do. If your Minecraft modpack crashes, lags, or won't launch, I find out why and fix it. If you want a pack or server built from scratch, I can do that too, plus plugins, Bedrock add-ons, skins and textures. My background is game development (five years in Godot), 2D animation, so I'm used to making things work and look right. I'm also in my final year of an engineering degree. No jargon, no vague promises, just a clear explanation of what went wrong and what I changed. Send me your problem and let's sort it out.
Reviews

1 reviews for this Gig
4.3

(0)
(1)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    3
Sort By
Most relevant
  • T

    thatpersonot

    US

    United States

    4.3

    Did great work, I'm really happy with how the product turned out. Only issue that came up was some extra costs mid-develpment I wasn't warned about until the time came to pay for them. Seller has incredible expertise in the field, would reccomend.

    $200-$400

    Price

    12 days

    Duration

    Helpful?
    Yes
    No
Reviews

1 reviews for this Gig
4.3

(0)
(1)
(0)
(0)
(0)
Rating Breakdown
  • Seller communication level
    5
  • Quality of delivery
    5
  • Value of delivery
    3
Sort By
Most relevant
  • T

    thatpersonot

    US

    United States

    4.3

    Did great work, I'm really happy with how the product turned out. Only issue that came up was some extra costs mid-develpment I wasn't warned about until the time came to pay for them. Seller has incredible expertise in the field, would reccomend.

    $200-$400

    Price

    12 days

    Duration

    Helpful?
    Yes
    No