My account is lost today :'(

I just enter to LOL willing to play and i find that it won't enter(I just create this account to see if there was someone else playing in my account), I test in the PBE and it's working but in EUW it's not... i forgot which Email i used in my account because i created about 10 years ago. Please someone to hekp me return to my account and my name in LOL is Oobouzbals :'( if any staff's members can help me with that i will appreciate it and please say to me if there was some activities today or yesterday like changing the email or the password thanks
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