Did that already, also with the Version without the a in the end + the old file i still had, and that one worked back then (now it has the same error).
No offense, but reading my entire message, would have helped

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//edit: That Admin CP file also causes my Apache to crash (according to logs + its reproducable (around every 4th-5th try I try to view that part, Apache crashes) - both updated and old files that did run for 6 Months just fine)