Panic Button
Step 1: Head over to this website EaglercraftX_1.8_Signed_Singleplayer_Offline.zip
Step 2: Locate these three buttons and click on the middle button (download)
OR
Play it Download Free Here!
Step 3: Once clicked, it should start the process automatically. It will let you know when the download is finished once you receive this message:
Step 4: Once downloaded, click "Show in folder", it should bring you to Files and highlight the file.
Step 5: Tap on the ZIP archive. You should have been brought to here by now.
Step 6: Tap on the HTML document. If done correctly, your screen should have turned into this.
If it did, good job, you have Minecraft Java 1.8.8 If not, go back to Step 1.