chore: add default text for missing causes and solutions

data/009/8111/en_US.json

@@ -3,10 +3,10 @@
 		"8111": {
 			"name": "Unknown",
 			"message": "The downloadable content is\ncorrupted.\n\nIn System Settings, select Data\nManagement ⇒ Nintendo 3DS ⇒\nDownloadable Content, delete the\ndownloadable content, and then\nredownload it.\n\nFor help, visit support.nintendo.com",
-			"short_description": "",
-			"long_description": "",
-			"short_solution": "",
-			"long_solution": "",
+			"short_description": "Unknown cause.",
+			"long_description": "Unknown cause.",
+			"short_solution": "Unknown solution.",
+			"long_solution": "Unknown solution.",
 			"support_link": "https://preten.do/009-8111"
 		}
 	}