Are the garbled up text in Log Horizon Season 2 Episode 9 meaningful or simply garbage?
Yes, the garbled up text is the result of mojibake, where the original text in Japanese, encoded in Shift-JIS encoding, is decoded by Windows-1256 encoding.

If you ever open up a Japanese web page or text file encoded in Shift-JIS encoding (2-byte character set) under some Western encoding in Windows (1-byte character set), you will see high frequency of ƒ paired up with some other character in the resulting view. Since I observe that there are Arabic characters in the image, I used one of my existing text file which is encoded in Shift-JIS and tried opening it with Arabic (Windows) encoding in the browser, and I found out that Arabic (Windows) or Western encoding has the same mapping for ƒ and Œ (which is another common character in the garbled up text).

After comparing to the properly rendered location status window and some guesswork, I managed to decode the garbled up text into proper Japanese text (the brackets 〈 and 〉 are added for clarity and not decoded from garbled up text):

〈サーバー〉
月サーバー
〈ゾーン〉
月サーバー
〈区分〉
個別ゾーン/モンスター出現なし
〈その他〉
戦闘行為可能区域
　全特技使用可能
　進入許可/制限あり
　退出許可/制限あり


Translation:

&lt;Server&gt;
Moon Server
&lt;Zone&gt;
Moon Server
&lt;Classification&gt;
Isolated zone/No monster
&lt;Other&gt;
PVP allowed
Special skills allowed
Entry restriction/Restricted
Exit restriction/Restricted


Appendix

To cross-check the result, you can use the following piece of Python 3 code:

garbled = 'ƒTپ[ƒoپ[\nŒژƒTپ[ƒoپ[\nƒ]پ[ƒ“\nŒژƒTپ[ƒoپ[\n‹و•ھ\nŒآ•تƒ]پ[ƒ“/ƒ‚ƒ“ƒXƒ^پ[ڈoŒ»‚ب‚µ\n‚»‚ج‘¼\nگي“¬چsˆ×‰آ”\\‹وˆو\nپ@‘S“ء‹Zژg—p‰آ”\\\nپ@گi“ü‹–‰آ/گ§Œہ‚\xa0‚è\nپ@‘قڈo‹–‰آ/گ§Œہ‚\xa0‚è'
print(garbled.encode('Windows-1256').decode('Shift-JIS'))


Below is the view-only source1 of the mojibake for comparison with the image: 

1 The text below contains U+200E Left-to-Right Mark to prevent Arabic characters from rendering right-to-left and changing their shapes based on their position. Another problem that prevents straight copying is due to the presence of U+00A0 No-Break Space, which is converted to space when copied from browser.

ƒ‎T‎پ‎[‎ƒ‎o‎پ‎[‎
Œ‎ژ‎ƒ‎T‎پ‎[‎ƒ‎o‎پ‎[‎
ƒ‎]‎پ‎[‎ƒ‎“‎
Œ‎ژ‎ƒ‎T‎پ‎[‎ƒ‎o‎پ‎[‎
‹‎و‎•‎ھ‎
Œ‎آ‎•‎ت‎ƒ‎]‎پ‎[‎ƒ‎“‎/‎ƒ‎‚‎ƒ‎“‎ƒ‎X‎ƒ‎^‎پ‎[‎ڈ‎o‎Œ‎»‎‚‎ب‎‚‎µ‎
‚‎»‎‚‎ج‎‘‎¼‎
گ‎ي‎“‎¬‎چ‎s‎ˆ‎×‎‰‎آ‎”‎\‎‹‎و‎ˆ‎و‎
پ‎@‎‘‎S‎“‎ء‎‹‎Z‎ژ‎g‎—‎p‎‰‎آ‎”‎\‎
پ‎@‎گ‎i‎“‎ü‎‹‎–‎‰‎آ‎/‎گ‎§‎Œ‎ہ‎‚‎ ‎‚‎è‎
پ‎@‎‘‎ق‎ڈ‎o‎‹‎–‎‰‎آ‎/‎گ‎§‎Œ‎ہ‎‚‎ ‎‚‎è‎