WHM sent me this: Excessive ATA Errors on disk

WHM sent me this: Excessive ATA Errors on disk
What do i do?

Excessive ATA Errors on disk /dev/hda. Please consider replacing this drive. Some Errors may be normal due to not 100% compatible IDE controllers and may be ignored.

SMART Error Log:
SMART Error Logging Version: 1
Error Log Data Structure Pointer: 05
ATA Error Count: 101
Non-Fatal Count: 0

Error Log Structure 1:
DCR FR SC SN CL SH D/H CR Timestamp
08 d9 f1 00 4f c2 a0 b0 1158
08 00 01 01 00 00 a0 c4 1158
08 03 0c 01 00 00 a0 ef 1158
08 03 45 01 00 00 a0 ef 1159
08 03 45 01 00 00 a0 22 1159
00 04 45 01 00 00 a0 51 3608129

Error Log Structure 2:
DCR FR SC SN CL SH D/H CR Timestamp
08 00 08 6f 10 50 e0 c5 83844
08 00 08 6f 10 58 e0 c5 83844
08 00 08 7f 10 60 e0 c5 83844
08 00 08 7f 10 68 e0 c5 83844
08 da 00 00 4f c2 e0 b0 83844
00 04 00 0b 4f c2 e0 51 3688587

Error Log Structure 3:
DCR FR SC SN CL SH D/H CR Timestamp
08 00 08 8f 10 00 e0 c5 1474578
08 00 08 3f 00 00 e0 c5 1474578
08 00 08 f7 5c c5 e4 c4 1474580
08 00 08 3f 00 00 e0 c4 1474580
08 00 05 01 00 00 a0 a1 1474592
00 04 05 01 00 00 a0 51 770408

Error Log Structure 4:
DCR FR SC SN CL SH D/H CR Timestamp
08 d9 f1 00 4f c2 a0 b0 1474592
08 00 01 01 00 00 a0 c4 1474592
08 03 0c 01 00 00 a0 ef 1474592
08 03 45 01 00 00 a0 ef 1474592
08 03 45 01 00 00 a0 22 1474593
00 04 45 01 00 00 a0 51 770408

Error Log Structure 5:
DCR FR SC SN CL SH D/H CR Timestamp
08 00 08 6f 00 28 e0 c5 1541217
08 00 08 6f 00 2c e0 c5 1541217
08 00 08 6f 00 34 e0 c5 1541217
08 00 08 6f 00 38 e0 c5 1541217
08 da 00 00 4f c2 e0 b0 1541299
00 04 00 0b 4f c2 e0 51 836919