im getting this error when trying to compile

[INkanon]

[ERROR] Failed to execute goal on project botclient: Could not resolve dependencies for project cn.wode490390.mcbe:botclient:jar:1.4.0: Failed to collect dependencies at com.nukkitx.protocol:bedrock-v408:jar:2.6.0-SNAPSHOT: Failed to read artifact descriptor for com.nukkitx.protocol:bedrock-v408:jar:2.6.0-SNAPSHOT: The following artifacts could not be resolved: com.nukkitx.protocol:bedrock-v408:pom:2.6.0-SNAPSHOT (absent): Could not transfer artifact com.nukkitx.protocol:bedrock-v408:pom:2.6.0-SNAPSHOT from/to nukkitx-repo (https://repo.nukkitx.com/main/): status code: 526, reason phrase: (526)