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I will fix minecraft modpack crashes, conflicts and lag for forge, neoforge, fabric
Ruslan G
About this gig
Your modpack crashes on startup, freezes on world load or lags on the server? I will find the real cause and fix it.
I am a Java developer who writes Minecraft mods and plugins, so I read crash reports and logs at the code level, not by guessing.
What I fix:
- Crashes on startup, world load or join
- Mod conflicts, missing dependencies, mixin errors
- Version mismatches between mods, loader and Minecraft
- Client/server desync, players kicked on join
- Low FPS, low TPS, memory leaks, long load times
- Cobblemon, ATM, Create and custom packs
Loaders: Forge, NeoForge, Fabric, Quilt. Launchers: CurseForge, Modrinth, Prism, ATLauncher.
What you get:
- A working modpack (client and/or server)
- A short report: what was broken and what I changed
- Tips to avoid the problem in the future
Please send your crash report or latest.log, the modpack export or mod list, and your Minecraft and loader version. Message me before ordering if you are not sure which package fits.
Get to know Ruslan G
Ruslan G
Minecraft mods, plugins and modpack fixes, Unity bug fixing
- FromUkraine
- Member sinceAug 2026
Languages
Ukrainian, Russian, English
Minecraft Developer | Mods, Plugins, Modpack Fixes, Unity
I create Minecraft mods and server plugins from scratch and fix broken modpacks: crashes, mod conflicts and lag. I work with Forge, NeoForge, Fabric, Paper, Spigot, Purpur and Velocity, from older versions to the latest.
I also fix bugs, crashes and Android/iOS build errors in Unity games (C#).
Languages: Java, Kotlin, C#, C++, Rust, Zig, Odin, Python.
Message me before ordering and I will reply with a clear plan, price and timeline.
Other Game Development Services I Offer
FAQ
What do you need from me to start?
The crash report or latest.log, your modpack export (CurseForge/Modrinth zip) or mod list, and the Minecraft and loader versions. For server issues, also the server log.
Can you fix a server and the client pack together?
Yes. The Standard and Premium packages cover both sides, so the client and server packs match and players can join without errors.
What if the crash cannot be fixed?
Sometimes two mods are simply incompatible. In that case I explain why and offer the best replacement mod or setting, so you still get a working pack.
Do you need access to my server?
Not always. Most issues can be fixed from logs and the modpack files. If access helps, a temporary FTP or panel user is enough, and you can remove it after delivery.
