Problem to create working zone...

Hello, im spanish, i have problems to create the working zone of the mod.
My error:
 

Executing 
    Gradle task: eclipse

Build 
    info: MCreator 2021.1.16710, forge-1.16.5, 64-bit, 3932 MB, Windows 8, JVM 
    1.8.0_275, JAVA_HOME: C:\Program Files\Pylo\MCreator\jdk

> 
    Task :downloadMcpConfig

> 
    Task :extractSrg UP-TO-DATE

> 
    Task :createSrgToMcp UP-TO-DATE

> 
    Task :downloadMCMeta UP-TO-DATE

Copying 
    local object: 75/751fec52a10bb2a5309a765fc622727422556a64 Asset: 
    minecraft/sounds/ambient/underwater/exit1.ogg

minecraft/sounds/ambient/underwater/exit1.ogg 
    Hash failed.

Copying 
    local object: 78/781d243e743f1a716ae36d5fdcbd4c80adf8ee0d Asset: 
    minecraft/textures/gui/title/background/panorama_2.png

minecraft/textures/gui/title/background/panorama_2.png 
    Hash failed.

> 
    Task :downloadAssets FAILED

FAILURE: 
    Build failed with an exception.

* 
    What went wrong:

Execution 
    failed for task ':downloadAssets'.

> 
    Failed to get asset: minecraft/sounds/ambient/underwater/exit1.ogg

 
     Failed to get asset: 
    minecraft/textures/gui/title/background/panorama_2.png

 
     Some assets failed to download or validate, try running the task again.

* 
    Try:

Run 
    with --stacktrace option to get the stack trace. Run with --info or 
    --debug option to get more log output. Run with --scan to get full 
    insights.

* 
    Get more help at https://help.gradle.org

Deprecated 
    Gradle features were used in this build, making it incompatible with 
    Gradle 7.0.

Use 
    '--warning-mode all' to show the individual deprecation warnings.

See 
    https://docs.gradle.org/6.8.1/userguide/command_line_interface.html#sec…

BUILD 
    FAILED in 38s

5 
    actionable tasks: 2 executed, 3 up-to-date

BUILD 
    FAILED

Task 
    completed in 39 seconds