When I start mcreator every version 1.7.9 1.8.0 1.8.1 it puts this error

Status
Fixed
Issue description

Here Is error log :   
Executing gradle command: cleanCache clean setupDecompWorkspace --refresh-dependencies
Build info: MCreator 1.8.1, 64-bit, 3669 MB, Windows 10 - cmd, JVM 1.8.0_172, JAVA_HOME: C:\Pylo\MCreator181\.\jdk
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C:\Pylo\MCreator181\forge>gradlew -Dorg.gradle.daemon=false -Dorg.gradle.parallel=false -Dorg.gradle.jvmargs="-Xms625m -Xmx2048m" cleanCache clean setupDecompWorkspace --refresh-dependencies
Etag download for https://files.minecraftforge.net/maven/de/oceanlabs/mcp/versions.json f…
Etag download for http://export.mcpbot.bspk.rs/versions.json failed with code 400
FAILURE: Build failed with an exception.
* Where:
Build file 'C:\Pylo\MCreator181\forge\build.gradle' line: 10
* What went wrong:
A problem occurred evaluating root project 'forge'.
> Failed to apply plugin [id 'net.minecraftforge.gradle.forge']
> java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 58.014 secs
C:\Pylo\MCreator181\forge>
Task completed with return code 0 in 60532 milliseconds

Issue comments

Go to your user home folder. Go to .mcreator folder and delete the gradle folder in it. After you do this, reinstall MCreator completely.

Before starting the install again, make sure that nothing is preventing MCreator from accessing files on the internet and that you have a stable internet connection.